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This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your General Knowledge knowledge and support exam preparation. Choose a topic below to get started.
| 201. |
Which of the following has the highest lattice energy? |
| Answer» <html><body><p> NaF</p><br/><br/><p>For compounds containing ions of same charge, lattice energy <a href="https://interviewquestions.tuteehub.com/tag/increases-1040626" style="font-weight:bold;" target="_blank" title="Click to know more about INCREASES">INCREASES</a> as the <a href="https://interviewquestions.tuteehub.com/tag/size-1211196" style="font-weight:bold;" target="_blank" title="Click to know more about SIZE">SIZE</a> of ions decreases. Thus, NaF has <a href="https://interviewquestions.tuteehub.com/tag/highest-1022683" style="font-weight:bold;" target="_blank" title="Click to know more about HIGHEST">HIGHEST</a> lattice energy.</p></body></html> | |
| 202. |
The water pollution in river is measured by the dissolved amount of |
| Answer» <html><body><p> Oxygen</p><br/><br/><p>Water <a href="https://interviewquestions.tuteehub.com/tag/pollution-602336" style="font-weight:bold;" target="_blank" title="Click to know more about POLLUTION">POLLUTION</a> in river or any other water <a href="https://interviewquestions.tuteehub.com/tag/body-900196" style="font-weight:bold;" target="_blank" title="Click to know more about BODY">BODY</a> is measured by amount of <a href="https://interviewquestions.tuteehub.com/tag/dissolved-956358" style="font-weight:bold;" target="_blank" title="Click to know more about DISSOLVED">DISSOLVED</a> oxygen.</p></body></html> | |
| 203. |
The chemical substance present in bones and teeth is |
| Answer» <html><body><p> <a href="https://interviewquestions.tuteehub.com/tag/calcium-412119" style="font-weight:bold;" target="_blank" title="Click to know more about CALCIUM">CALCIUM</a> <a href="https://interviewquestions.tuteehub.com/tag/phosphate-599786" style="font-weight:bold;" target="_blank" title="Click to know more about PHOSPHATE">PHOSPHATE</a><br/></p></body></html> | |
| 204. |
Chemical name of vinegar is |
| Answer» <html><body><p> <a href="https://interviewquestions.tuteehub.com/tag/acetic-1967065" style="font-weight:bold;" target="_blank" title="Click to know more about ACETIC">ACETIC</a> acid</p><br/><br/><p>Vinegar is an <a href="https://interviewquestions.tuteehub.com/tag/aqueous-2440179" style="font-weight:bold;" target="_blank" title="Click to know more about AQUEOUS">AQUEOUS</a> solution of acetic acid and trace <a href="https://interviewquestions.tuteehub.com/tag/chemicals-915059" style="font-weight:bold;" target="_blank" title="Click to know more about CHEMICALS">CHEMICALS</a> that may <a href="https://interviewquestions.tuteehub.com/tag/include-11332" style="font-weight:bold;" target="_blank" title="Click to know more about INCLUDE">INCLUDE</a> <a href="https://interviewquestions.tuteehub.com/tag/flavorings-7682776" style="font-weight:bold;" target="_blank" title="Click to know more about FLAVORINGS">FLAVORINGS</a>.</p></body></html> | |
| 205. |
In deep-sea diving, divers use a mixture of gases consisting of oxygen and |
| Answer» <html><body><p> <a href="https://interviewquestions.tuteehub.com/tag/nitrogen-1118291" style="font-weight:bold;" target="_blank" title="Click to know more about NITROGEN">NITROGEN</a></p><br/><br/><p>Air is not the "ideal" breathing <a href="https://interviewquestions.tuteehub.com/tag/mixture-1098735" style="font-weight:bold;" target="_blank" title="Click to know more about MIXTURE">MIXTURE</a> for diving as with a concentration of approximately 79 percent nitrogen, compressed air poses two potential problems for all divers: <a href="https://interviewquestions.tuteehub.com/tag/susceptibility-1236066" style="font-weight:bold;" target="_blank" title="Click to know more about SUSCEPTIBILITY">SUSCEPTIBILITY</a> to nitrogen narcosis and at deeper depths; and decompression sickness. So divers use Nitrox, a gaseous mixture of nitrogen and oxygen. It is also known as ‘<a href="https://interviewquestions.tuteehub.com/tag/enriched-7679187" style="font-weight:bold;" target="_blank" title="Click to know more about ENRICHED">ENRICHED</a> Air.’</p></body></html> | |
| 206. |
Who modified Bohr's theory by introducing elliptical orbits for electron path? |
| Answer» <html><body><p> Sommerfeld</p><br/><br/><p>Sommerfeld modified Bohr's theory. According to him <a href="https://interviewquestions.tuteehub.com/tag/electrons-969138" style="font-weight:bold;" target="_blank" title="Click to know more about ELECTRONS">ELECTRONS</a> move in elliptical orbits in addition to <a href="https://interviewquestions.tuteehub.com/tag/circular-916697" style="font-weight:bold;" target="_blank" title="Click to know more about CIRCULAR">CIRCULAR</a> orbits.</p></body></html> | |
| 207. |
Which among the following is found in chlorophyll ? |
| Answer» <html><body><p> Mg<sup>2+</sup></p><br/><br/><p>Chlorophyll is the <a href="https://interviewquestions.tuteehub.com/tag/green-476835" style="font-weight:bold;" target="_blank" title="Click to know more about GREEN">GREEN</a> <a href="https://interviewquestions.tuteehub.com/tag/pigment-1154583" style="font-weight:bold;" target="_blank" title="Click to know more about PIGMENT">PIGMENT</a> found in most <a href="https://interviewquestions.tuteehub.com/tag/plants-601210" style="font-weight:bold;" target="_blank" title="Click to know more about PLANTS">PLANTS</a>, which is responsible for light absorption to <a href="https://interviewquestions.tuteehub.com/tag/provide-607804" style="font-weight:bold;" target="_blank" title="Click to know more about PROVIDE">PROVIDE</a> energy by <a href="https://interviewquestions.tuteehub.com/tag/photosynthesis-18681" style="font-weight:bold;" target="_blank" title="Click to know more about PHOTOSYNTHESIS">PHOTOSYNTHESIS</a>. Chlorophyll contains magnesium ion.</p></body></html> | |
| 208. |
Among the following the hardest metal is |
| Answer» <html><body><p> Tungsten</p><br/><br/><p>Tungsten is the <a href="https://interviewquestions.tuteehub.com/tag/hardest-1015775" style="font-weight:bold;" target="_blank" title="Click to know more about HARDEST">HARDEST</a> <a href="https://interviewquestions.tuteehub.com/tag/metal-1094457" style="font-weight:bold;" target="_blank" title="Click to know more about METAL">METAL</a> <a href="https://interviewquestions.tuteehub.com/tag/among-374776" style="font-weight:bold;" target="_blank" title="Click to know more about AMONG">AMONG</a> the <a href="https://interviewquestions.tuteehub.com/tag/following-463335" style="font-weight:bold;" target="_blank" title="Click to know more about FOLLOWING">FOLLOWING</a>.</p></body></html> | |
| 209. |
The most abundant constituent of atmospheric air is : |
| Answer» <html><body><p> Nitrogen</p><br/><br/><p><a href="https://interviewquestions.tuteehub.com/tag/air-852233" style="font-weight:bold;" target="_blank" title="Click to know more about AIR">AIR</a> is the name given to the atmosphere <a href="https://interviewquestions.tuteehub.com/tag/used-2318798" style="font-weight:bold;" target="_blank" title="Click to know more about USED">USED</a> in breathing and photosynthesis. <a href="https://interviewquestions.tuteehub.com/tag/dry-960094" style="font-weight:bold;" target="_blank" title="Click to know more about DRY">DRY</a> air <a href="https://interviewquestions.tuteehub.com/tag/contains-11473" style="font-weight:bold;" target="_blank" title="Click to know more about CONTAINS">CONTAINS</a> roughly (by <a href="https://interviewquestions.tuteehub.com/tag/volume-728707" style="font-weight:bold;" target="_blank" title="Click to know more about VOLUME">VOLUME</a>) 78.09% nitrogen, 20.95% oxygen, 0.93% argon, 0.039% carbon dioxide, and small amounts of other gases.</p></body></html> | |
| 210. |
Steel contains |
| Answer» <html><body><p> 0.1 <a href="https://interviewquestions.tuteehub.com/tag/5-319454" style="font-weight:bold;" target="_blank" title="Click to know more about 5">5</a>% <a href="https://interviewquestions.tuteehub.com/tag/carbon-16249" style="font-weight:bold;" target="_blank" title="Click to know more about CARBON">CARBON</a></p><br/><br/><p>Steel <a href="https://interviewquestions.tuteehub.com/tag/contains-11473" style="font-weight:bold;" target="_blank" title="Click to know more about CONTAINS">CONTAINS</a> 0.1 – 5% carbon.</p></body></html> | |
| 211. |
Denatured spirit is ethanol mixed with |
| Answer» <html><body><p> Pyridine</p><br/><br/><p>Denatured alcohol or methylated spirits is ethanol that has additives to make it undrinkable (poisonous), to discourage recreational consumption. In some cases it is also dyed. Denatured alcohol is used as a solvent and as fuel for spirit <a href="https://interviewquestions.tuteehub.com/tag/burners-905662" style="font-weight:bold;" target="_blank" title="Click to know more about BURNERS">BURNERS</a> and camping stoves. Because of the diversity of industrial uses for denatured alcohol, hundreds of additives and denaturing <a href="https://interviewquestions.tuteehub.com/tag/methods-11862" style="font-weight:bold;" target="_blank" title="Click to know more about METHODS">METHODS</a> have been used. The main additive has traditionally been 10% methanol, giving rise to the term “methylated spirit.” Other typical additives include isopropyl alcohol, acetone, methyl <a href="https://interviewquestions.tuteehub.com/tag/ethyl-976035" style="font-weight:bold;" target="_blank" title="Click to know more about ETHYL">ETHYL</a> ketone, methyl isobutyl ketone, and denatonium. Completely denatured alcohol must be made in accordance with the following formulation: with every 90 parts by volume of alcohol <a href="https://interviewquestions.tuteehub.com/tag/mix-1098576" style="font-weight:bold;" target="_blank" title="Click to know more about MIX">MIX</a> 9.5 parts by volume of <a href="https://interviewquestions.tuteehub.com/tag/wood-1458679" style="font-weight:bold;" target="_blank" title="Click to know more about WOOD">WOOD</a> naphtha or a substitute and 0.5 parts by volume of crude pyridine, and to the resulting mixture add mineral naphtha (petroleum oil) in the proportion of 3.75 litres to every 1000 litres of the mixture and synthetic organic dyestuff (methyl violet) in the proportion of 1.5 grams to every 1000 litres of the mixture.</p></body></html> | |
| 212. |
Which is not a green house gas ? |
| Answer» <html><body><p> N<sub>2</sub>O</p><br/><br/><p>N<sub>2</sub>O is not a <a href="https://interviewquestions.tuteehub.com/tag/green-476835" style="font-weight:bold;" target="_blank" title="Click to know more about GREEN">GREEN</a> <a href="https://interviewquestions.tuteehub.com/tag/house-1030115" style="font-weight:bold;" target="_blank" title="Click to know more about HOUSE">HOUSE</a> <a href="https://interviewquestions.tuteehub.com/tag/gas-1003521" style="font-weight:bold;" target="_blank" title="Click to know more about GAS">GAS</a>.</p></body></html> | |
| 213. |
Air is said to be saturated when : |
| Answer» <html><body><p> It contains <a href="https://interviewquestions.tuteehub.com/tag/maximum-556915" style="font-weight:bold;" target="_blank" title="Click to know more about MAXIMUM">MAXIMUM</a> content of <a href="https://interviewquestions.tuteehub.com/tag/water-1449333" style="font-weight:bold;" target="_blank" title="Click to know more about WATER">WATER</a> vapour</p><br/><br/><p>Air is <a href="https://interviewquestions.tuteehub.com/tag/said-629244" style="font-weight:bold;" target="_blank" title="Click to know more about SAID">SAID</a> to be saturated when the amount of water vapour in the air is the maximum possible at an existing temperature and pressure. Air is said to be saturated at 100 <a href="https://interviewquestions.tuteehub.com/tag/percent-1150333" style="font-weight:bold;" target="_blank" title="Click to know more about PERCENT">PERCENT</a> <a href="https://interviewquestions.tuteehub.com/tag/relative-1183377" style="font-weight:bold;" target="_blank" title="Click to know more about RELATIVE">RELATIVE</a> humidity when it contains the maximum amount of moisture possible at that specific temperature.</p></body></html> | |
| 214. |
For generation of biogas, the materials commonly used are |
| Answer» <html><body><p> Animal wastes</p><br/><br/><p>Biogas typically refers to a gas <a href="https://interviewquestions.tuteehub.com/tag/produced-592947" style="font-weight:bold;" target="_blank" title="Click to know more about PRODUCED">PRODUCED</a> by breakdown of organic matter in the absence of oxygen. Organic waste such as dead plant and animal material, animal feces, and <a href="https://interviewquestions.tuteehub.com/tag/kitchen-533901" style="font-weight:bold;" target="_blank" title="Click to know more about KITCHEN">KITCHEN</a> waste can be converted into a gaseous fuel called biogas. Biogas originates from biogenic material and is a type of bio fuel. Biogas is produced by the anaerobic digestion or fermentation of biodegradable materials such as <a href="https://interviewquestions.tuteehub.com/tag/biomass-898143" style="font-weight:bold;" target="_blank" title="Click to know more about BIOMASS">BIOMASS</a>, manure, sewage, municipal waste, green waste, plant material, and crops. Biogas comprises primarily methane (CH<sub>4</sub>) and <a href="https://interviewquestions.tuteehub.com/tag/carbon-16249" style="font-weight:bold;" target="_blank" title="Click to know more about CARBON">CARBON</a> dioxide (CO<sub>2</sub>) and may have small amounts of hydrogen sulphide (H<sub>2</sub>S), moisture and siloxanes.</p></body></html> | |
| 215. |
Photo chemical smog is a resultant of the reaction among |
| Answer» <html><body><p> NO<sub>2</sub>, O<sub>3</sub> and peroxy <a href="https://interviewquestions.tuteehub.com/tag/acetyl-847415" style="font-weight:bold;" target="_blank" title="Click to know more about ACETYL">ACETYL</a> nitrate in the presence of Sunlight</p><br/><br/><p>Photochemical smog is a unique type of air pollution which is caused by reactions between sunlight and pollutants like hydrocarbons and nitrogen <a href="https://interviewquestions.tuteehub.com/tag/dioxide-954355" style="font-weight:bold;" target="_blank" title="Click to know more about DIOXIDE">DIOXIDE</a> (NO and NO<sub>2</sub>). Other components of the photochemical smog include Ozone (O<sub>3</sub>) formaldehyde, peroxy <a href="https://interviewquestions.tuteehub.com/tag/benzoyl-2000481" style="font-weight:bold;" target="_blank" title="Click to know more about BENZOYL">BENZOYL</a> nitrate (PBzN), peroxy acetyl nitrate (<a href="https://interviewquestions.tuteehub.com/tag/pan-590075" style="font-weight:bold;" target="_blank" title="Click to know more about PAN">PAN</a>) and acrolein.</p></body></html> | |
| 216. |
The gas used for artificial fruit ripening of green fruit is |
| Answer» <html><body><p> Ethylene</p><br/><br/><p>Ethylene gas, acetylene gas <a href="https://interviewquestions.tuteehub.com/tag/liberated-2789268" style="font-weight:bold;" target="_blank" title="Click to know more about LIBERATED">LIBERATED</a> from <a href="https://interviewquestions.tuteehub.com/tag/calcium-412119" style="font-weight:bold;" target="_blank" title="Click to know more about CALCIUM">CALCIUM</a> carbide, and ethephon are some of the commercial ripening <a href="https://interviewquestions.tuteehub.com/tag/agents-17824" style="font-weight:bold;" target="_blank" title="Click to know more about AGENTS">AGENTS</a> used successfully in the trade and they have been widely studied for their effectiveness on initiating and <a href="https://interviewquestions.tuteehub.com/tag/accelerating-366486" style="font-weight:bold;" target="_blank" title="Click to know more about ACCELERATING">ACCELERATING</a> the ripening process and their effect on fruit quality and health related <a href="https://interviewquestions.tuteehub.com/tag/issues-520128" style="font-weight:bold;" target="_blank" title="Click to know more about ISSUES">ISSUES</a>.</p></body></html> | |
| 217. |
Surface water is a better source of drinking water because it is poor in |
| Answer» <html><body><p> <a href="https://interviewquestions.tuteehub.com/tag/arsenic-382124" style="font-weight:bold;" target="_blank" title="Click to know more about ARSENIC">ARSENIC</a></p><br/><br/><p>Surface <a href="https://interviewquestions.tuteehub.com/tag/water-1449333" style="font-weight:bold;" target="_blank" title="Click to know more about WATER">WATER</a> is a <a href="https://interviewquestions.tuteehub.com/tag/better-895998" style="font-weight:bold;" target="_blank" title="Click to know more about BETTER">BETTER</a> source of <a href="https://interviewquestions.tuteehub.com/tag/drinking-959674" style="font-weight:bold;" target="_blank" title="Click to know more about DRINKING">DRINKING</a> water because it is poor in arsenic.</p></body></html> | |
| 218. |
What are the major pollutants of cigarette smoke? |
| Answer» <html><body><p> Carbon monoxide and nicotine<br/></p><br/><br/><p>Particulate matter consists of millions of <a href="https://interviewquestions.tuteehub.com/tag/tiny-661140" style="font-weight:bold;" target="_blank" title="Click to know more about TINY">TINY</a> particles of diverse chemical composition. Particulate matter from tobacco smoke includes many particles in the size range that <a href="https://interviewquestions.tuteehub.com/tag/reflects-2982290" style="font-weight:bold;" target="_blank" title="Click to know more about REFLECTS">REFLECTS</a> light, which explains why tobacco smoke is easily seen by the eye. In contrast to smoke particles, gases emitted by the cigarette such as benzene and carbon monoxide (CO) are invisible to the eye. Particles smaller than 2.5 micrometers (PM2.5) are major components of cigarette smoke and can enter deep into the lung where they can cause serious health problems. The pollutants generated by the cigarette arise from the chemical process of burning organic matter, or combustion of tobacco and paper. Combustion processes, such as <a href="https://interviewquestions.tuteehub.com/tag/wood-1458679" style="font-weight:bold;" target="_blank" title="Click to know more about WOOD">WOOD</a> burning or waste incineration, emit thousands of pollutants, some of which are in the gas <a href="https://interviewquestions.tuteehub.com/tag/phase-22748" style="font-weight:bold;" target="_blank" title="Click to know more about PHASE">PHASE</a> and some of which are in the form of <a href="https://interviewquestions.tuteehub.com/tag/small-1212368" style="font-weight:bold;" target="_blank" title="Click to know more about SMALL">SMALL</a> particles called particulate matter.</p></body></html> | |
| 219. |
Which one of the following is not a characteristic feature of alloys? |
| Answer» <html><body><p> Homogeneous <a href="https://interviewquestions.tuteehub.com/tag/systems-1237607" style="font-weight:bold;" target="_blank" title="Click to know more about SYSTEMS">SYSTEMS</a></p><br/><br/><p>An alloy is a mixture or <a href="https://interviewquestions.tuteehub.com/tag/metallic-547634" style="font-weight:bold;" target="_blank" title="Click to know more about METALLIC">METALLIC</a> solid solution composed of two or more elements. So they are heterogeneous systems. Complete solid solution alloys <a href="https://interviewquestions.tuteehub.com/tag/give-468520" style="font-weight:bold;" target="_blank" title="Click to know more about GIVE">GIVE</a> single solid phase microstructure, while partial solutions give two or more phases that may or may not be homogeneous in distribution, depending on thermal (heat treatment) history. Alloys <a href="https://interviewquestions.tuteehub.com/tag/usually-722248" style="font-weight:bold;" target="_blank" title="Click to know more about USUALLY">USUALLY</a> have different properties from those of the component elements.</p></body></html> | |
| 220. |
Tear gas is : |
| Answer» <html><body><p> <a href="https://interviewquestions.tuteehub.com/tag/carbonyl-413350" style="font-weight:bold;" target="_blank" title="Click to know more about CARBONYL">CARBONYL</a> <a href="https://interviewquestions.tuteehub.com/tag/chloride-915854" style="font-weight:bold;" target="_blank" title="Click to know more about CHLORIDE">CHLORIDE</a></p><br/><br/><p>Tear <a href="https://interviewquestions.tuteehub.com/tag/gas-1003521" style="font-weight:bold;" target="_blank" title="Click to know more about GAS">GAS</a> is Carbonyl chloride.</p></body></html> | |
| 221. |
One of the following is used to dissolve noble metals. That is |
| Answer» <html><body><p> Aqua <a href="https://interviewquestions.tuteehub.com/tag/regia-2982825" style="font-weight:bold;" target="_blank" title="Click to know more about REGIA">REGIA</a></p><br/><br/><p>Aqua regia is a mixture of concentrated hydrochloric acid and <a href="https://interviewquestions.tuteehub.com/tag/nitric-1118252" style="font-weight:bold;" target="_blank" title="Click to know more about NITRIC">NITRIC</a> acid in the ratio of 3:1, and can <a href="https://interviewquestions.tuteehub.com/tag/dissolve-432057" style="font-weight:bold;" target="_blank" title="Click to know more about DISSOLVE">DISSOLVE</a> noble metals <a href="https://interviewquestions.tuteehub.com/tag/like-1073845" style="font-weight:bold;" target="_blank" title="Click to know more about LIKE">LIKE</a> gold.</p></body></html> | |
| 222. |
Select the one which is not a mixture : |
| Answer» <html><body><p> Distilled <a href="https://interviewquestions.tuteehub.com/tag/water-1449333" style="font-weight:bold;" target="_blank" title="Click to know more about WATER">WATER</a></p><br/><br/><p>Water (H<sub>2</sub>O) is the most abundant compound on <a href="https://interviewquestions.tuteehub.com/tag/earth-13129" style="font-weight:bold;" target="_blank" title="Click to know more about EARTH">EARTH</a>'s <a href="https://interviewquestions.tuteehub.com/tag/surface-1235573" style="font-weight:bold;" target="_blank" title="Click to know more about SURFACE">SURFACE</a>. Water is a compound because it contains oxygen and hydrogen which are chemically <a href="https://interviewquestions.tuteehub.com/tag/combined-409631" style="font-weight:bold;" target="_blank" title="Click to know more about COMBINED">COMBINED</a> in proportion.</p></body></html> | |
| 223. |
Candle is a mixture of |
| Answer» <html><body><p> Paraffin was and <a href="https://interviewquestions.tuteehub.com/tag/stearic-2281767" style="font-weight:bold;" target="_blank" title="Click to know more about STEARIC">STEARIC</a> acid</p><br/><br/><p>Most candles are made from paraffin wax, a byproduct of petroleum refining. Candles can <a href="https://interviewquestions.tuteehub.com/tag/also-373387" style="font-weight:bold;" target="_blank" title="Click to know more about ALSO">ALSO</a> be made from microcrystalline wax, beeswax (a byproduct of honey collection), gel (a mixture of polymer and mineral oil), or some plant <a href="https://interviewquestions.tuteehub.com/tag/waxes-1450541" style="font-weight:bold;" target="_blank" title="Click to know more about WAXES">WAXES</a> (generally <a href="https://interviewquestions.tuteehub.com/tag/palm-1145889" style="font-weight:bold;" target="_blank" title="Click to know more about PALM">PALM</a>, <a href="https://interviewquestions.tuteehub.com/tag/carnauba-7729309" style="font-weight:bold;" target="_blank" title="Click to know more about CARNAUBA">CARNAUBA</a>, bayberry, or soybean wax).</p></body></html> | |
| 224. |
Brass is a solution of molten copper in |
| Answer» <html><body><p> <a href="https://interviewquestions.tuteehub.com/tag/molten-548661" style="font-weight:bold;" target="_blank" title="Click to know more about MOLTEN">MOLTEN</a> <a href="https://interviewquestions.tuteehub.com/tag/zinc-751325" style="font-weight:bold;" target="_blank" title="Click to know more about ZINC">ZINC</a></p><br/><br/><p>'Brass' is a <a href="https://interviewquestions.tuteehub.com/tag/solution-25781" style="font-weight:bold;" target="_blank" title="Click to know more about SOLUTION">SOLUTION</a> of molten <a href="https://interviewquestions.tuteehub.com/tag/copper-933790" style="font-weight:bold;" target="_blank" title="Click to know more about COPPER">COPPER</a> in Molten zinc. Brass is an <a href="https://interviewquestions.tuteehub.com/tag/alloy-857965" style="font-weight:bold;" target="_blank" title="Click to know more about ALLOY">ALLOY</a> of 'copper and zinc'.</p></body></html> | |
| 225. |
Smoke is formed due to |
| Answer» <html><body><p> Solid dispersed in gas<br/></p><br/><br/><p>Smoke is a collection of airborne solid and liquid particulates and gases emitted when a material undergoes combustion or pyrolysis, together with the quantity of air that is entrained or otherwise mixed into the mass. It is commonly an unwanted by-product of fires (including stoves, candles, oil lamps, and fireplaces), but may <a href="https://interviewquestions.tuteehub.com/tag/also-373387" style="font-weight:bold;" target="_blank" title="Click to know more about ALSO">ALSO</a> be used for pest control (cf. fumigation), communication (smoke signals), defensive and offensive capabilities in the military (smokescreen), <a href="https://interviewquestions.tuteehub.com/tag/cooking-933459" style="font-weight:bold;" target="_blank" title="Click to know more about COOKING">COOKING</a> (smoked salmon), or smoking (tobacco, <a href="https://interviewquestions.tuteehub.com/tag/cannabis-412811" style="font-weight:bold;" target="_blank" title="Click to know more about CANNABIS">CANNABIS</a>, etc.). Smoke inhalation is the primary cause of death in victims of indoor fires. The smoke kills by a <a href="https://interviewquestions.tuteehub.com/tag/combination-922669" style="font-weight:bold;" target="_blank" title="Click to know more about COMBINATION">COMBINATION</a> of thermal damage, poisoning and pulmonary irritation caused by carbon <a href="https://interviewquestions.tuteehub.com/tag/monoxide-2842046" style="font-weight:bold;" target="_blank" title="Click to know more about MONOXIDE">MONOXIDE</a>, hydrogen cyanide and other combustion products.</p></body></html> | |
| 226. |
Which one is the lightest element in the periodic table |
| Answer» <html><body><p> <a href="https://interviewquestions.tuteehub.com/tag/hydrogen-22331" style="font-weight:bold;" target="_blank" title="Click to know more about HYDROGEN">HYDROGEN</a></p><br/><br/><p>The <a href="https://interviewquestions.tuteehub.com/tag/lightest-541879" style="font-weight:bold;" target="_blank" title="Click to know more about LIGHTEST">LIGHTEST</a> chemical <a href="https://interviewquestions.tuteehub.com/tag/element-969236" style="font-weight:bold;" target="_blank" title="Click to know more about ELEMENT">ELEMENT</a> is Hydrogen and the heaviest is <a href="https://interviewquestions.tuteehub.com/tag/hassium-2106337" style="font-weight:bold;" target="_blank" title="Click to know more about HASSIUM">HASSIUM</a>.</p></body></html> | |
| 227. |
This group of alumino-silicate minerals is widely used in making electrical insulators |
| Answer» <html><body><p> <a href="https://interviewquestions.tuteehub.com/tag/mica-1276" style="font-weight:bold;" target="_blank" title="Click to know more about MICA">MICA</a></p><br/><br/><p>Sheet mica is used <a href="https://interviewquestions.tuteehub.com/tag/principally-7703475" style="font-weight:bold;" target="_blank" title="Click to know more about PRINCIPALLY">PRINCIPALLY</a> in the electronic and electrical <a href="https://interviewquestions.tuteehub.com/tag/industries-515587" style="font-weight:bold;" target="_blank" title="Click to know more about INDUSTRIES">INDUSTRIES</a>. Its usefulness in these applications is derived from its unique electrical and thermal insulating properties and its mechanical properties, which allow it to be cut, punched, stamped, and <a href="https://interviewquestions.tuteehub.com/tag/machined-7699768" style="font-weight:bold;" target="_blank" title="Click to know more about MACHINED">MACHINED</a> to <a href="https://interviewquestions.tuteehub.com/tag/close-408965" style="font-weight:bold;" target="_blank" title="Click to know more about CLOSE">CLOSE</a> tolerances. Specifically, Mica is unusual in that it is a good electrical insulator at the same time as being a good thermal conductor.</p></body></html> | |
| 228. |
The major use of sulphur is in the manufacture of |
| Answer» <html><body><p> H<sub>2</sub>SO<sub>4</sub></p><br/><br/><p>The major use of sulphur is in the <a href="https://interviewquestions.tuteehub.com/tag/manufacture-1086315" style="font-weight:bold;" target="_blank" title="Click to know more about MANUFACTURE">MANUFACTURE</a> of sulphuric <a href="https://interviewquestions.tuteehub.com/tag/acid-847491" style="font-weight:bold;" target="_blank" title="Click to know more about ACID">ACID</a> (H<sub>2</sub>SO<sub>4</sub>) which is one of the most important compounds made by the chemical industry. It is <a href="https://interviewquestions.tuteehub.com/tag/used-2318798" style="font-weight:bold;" target="_blank" title="Click to know more about USED">USED</a> to make, literally, hundreds of compounds needed by almost every industry.</p></body></html> | |
| 229. |
If a buffer solution is diluted its pH |
| Answer» <html><body><p> <a href="https://interviewquestions.tuteehub.com/tag/remains-621920" style="font-weight:bold;" target="_blank" title="Click to know more about REMAINS">REMAINS</a> same</p><br/><br/><p>Generally, <a href="https://interviewquestions.tuteehub.com/tag/dilution-439763" style="font-weight:bold;" target="_blank" title="Click to know more about DILUTION">DILUTION</a> has no <a href="https://interviewquestions.tuteehub.com/tag/effect-966056" style="font-weight:bold;" target="_blank" title="Click to know more about EFFECT">EFFECT</a> on the <a href="https://interviewquestions.tuteehub.com/tag/ph-1145128" style="font-weight:bold;" target="_blank" title="Click to know more about PH">PH</a>.</p></body></html> | |
| 230. |
Sulphur dioxide present in the industrial chimney exhaust causes |
| Answer» <html><body><p> All of the above</p><br/><br/><p>Sulphur dioxide <a href="https://interviewquestions.tuteehub.com/tag/present-1163722" style="font-weight:bold;" target="_blank" title="Click to know more about PRESENT">PRESENT</a> in the industrial <a href="https://interviewquestions.tuteehub.com/tag/chimney-915730" style="font-weight:bold;" target="_blank" title="Click to know more about CHIMNEY">CHIMNEY</a> exhaust causes respiratory and lung disease <a href="https://interviewquestions.tuteehub.com/tag/reduction-621019" style="font-weight:bold;" target="_blank" title="Click to know more about REDUCTION">REDUCTION</a> in <a href="https://interviewquestions.tuteehub.com/tag/plant-1155789" style="font-weight:bold;" target="_blank" title="Click to know more about PLANT">PLANT</a>'s productivity owing to acid rain and corrosion <a href="https://interviewquestions.tuteehub.com/tag/building-905221" style="font-weight:bold;" target="_blank" title="Click to know more about BUILDING">BUILDING</a> materials.</p></body></html> | |
| 231. |
Which one of the following minerals is found in Monazite sand ? |
| Answer» <html><body><p> Thorium</p><br/><br/><p>Monazite is an important ore for thorium, lanthanum, and cerium. It is often found in <a href="https://interviewquestions.tuteehub.com/tag/placer-7703821" style="font-weight:bold;" target="_blank" title="Click to know more about PLACER">PLACER</a> deposits. <a href="https://interviewquestions.tuteehub.com/tag/india-54" style="font-weight:bold;" target="_blank" title="Click to know more about INDIA">INDIA</a>, Madagascar, and <a href="https://interviewquestions.tuteehub.com/tag/south-1219419" style="font-weight:bold;" target="_blank" title="Click to know more about SOUTH">SOUTH</a> <a href="https://interviewquestions.tuteehub.com/tag/africa-368691" style="font-weight:bold;" target="_blank" title="Click to know more about AFRICA">AFRICA</a> have large deposits of monazite sands. The deposits in India are particularly <a href="https://interviewquestions.tuteehub.com/tag/rich-614275" style="font-weight:bold;" target="_blank" title="Click to know more about RICH">RICH</a> in monazite.</p></body></html> | |
| 232. |
Limestone is a raw material used by which industry? |
| Answer» <html><body><p> Cement</p><br/><br/><p>Limestone is <a href="https://interviewquestions.tuteehub.com/tag/used-2318798" style="font-weight:bold;" target="_blank" title="Click to know more about USED">USED</a> as a raw-material for the manufacture of quicklime (calcium oxide), slaked lime (calcium hydroxide), cement and <a href="https://interviewquestions.tuteehub.com/tag/mortar-18864" style="font-weight:bold;" target="_blank" title="Click to know more about MORTAR">MORTAR</a>. <a href="https://interviewquestions.tuteehub.com/tag/clay-918428" style="font-weight:bold;" target="_blank" title="Click to know more about CLAY">CLAY</a> and shale are also used as raw <a href="https://interviewquestions.tuteehub.com/tag/materials-1089380" style="font-weight:bold;" target="_blank" title="Click to know more about MATERIALS">MATERIALS</a> for the <a href="https://interviewquestions.tuteehub.com/tag/production-14556" style="font-weight:bold;" target="_blank" title="Click to know more about PRODUCTION">PRODUCTION</a> of cement.</p></body></html> | |
| 233. |
Electrolysis of an aqueous solution of copper sulphate using copper electrodes gives |
| Answer» <html><body><p> Copper at <a href="https://interviewquestions.tuteehub.com/tag/cathode-910820" style="font-weight:bold;" target="_blank" title="Click to know more about CATHODE">CATHODE</a> and <a href="https://interviewquestions.tuteehub.com/tag/oxygen-1144542" style="font-weight:bold;" target="_blank" title="Click to know more about OXYGEN">OXYGEN</a> at anode</p><br/><br/><p>Electrolysis of an aqueous solution of copper sulphate <a href="https://interviewquestions.tuteehub.com/tag/using-7379753" style="font-weight:bold;" target="_blank" title="Click to know more about USING">USING</a> copper <a href="https://interviewquestions.tuteehub.com/tag/electrodes-449936" style="font-weight:bold;" target="_blank" title="Click to know more about ELECTRODES">ELECTRODES</a> gives copper at cathode and oxygen at anode.</p></body></html> | |
| 234. |
Which method will be employed to test the hardness of water? |
| Answer» <html><body><p> Formation of lather with <a href="https://interviewquestions.tuteehub.com/tag/soap-11667" style="font-weight:bold;" target="_blank" title="Click to know more about SOAP">SOAP</a></p><br/><br/><p>Soap solution is used to measure the <a href="https://interviewquestions.tuteehub.com/tag/hardness-14971" style="font-weight:bold;" target="_blank" title="Click to know more about HARDNESS">HARDNESS</a> of rain water, temporarily hard water and sea-water. Hard water does not form soap lather. This is because magnesium ions or calcium ions <a href="https://interviewquestions.tuteehub.com/tag/present-1163722" style="font-weight:bold;" target="_blank" title="Click to know more about PRESENT">PRESENT</a> in hard water react with soap to form calcium stearate or magnesium stearate and thus <a href="https://interviewquestions.tuteehub.com/tag/forms-11384" style="font-weight:bold;" target="_blank" title="Click to know more about FORMS">FORMS</a> scum.</p></body></html> | |
| 235. |
Aspirin is chemically known as |
| Answer» <html><body><p> Acetylsalicylic acid</p><br/><br/><p>One of the best <a href="https://interviewquestions.tuteehub.com/tag/known-534098" style="font-weight:bold;" target="_blank" title="Click to know more about KNOWN">KNOWN</a> aromatic acetates is acetylsalicylic acid, or aspirin, which is prepared by the esterification of the <a href="https://interviewquestions.tuteehub.com/tag/phenolic-2220486" style="font-weight:bold;" target="_blank" title="Click to know more about PHENOLIC">PHENOLIC</a> <a href="https://interviewquestions.tuteehub.com/tag/hydroxyl-1034439" style="font-weight:bold;" target="_blank" title="Click to know more about HYDROXYL">HYDROXYL</a> group of salicylic acid. Aspirin possesses a number of properties that make it the most often <a href="https://interviewquestions.tuteehub.com/tag/recommended-2979399" style="font-weight:bold;" target="_blank" title="Click to know more about RECOMMENDED">RECOMMENDED</a> <a href="https://interviewquestions.tuteehub.com/tag/drug-959921" style="font-weight:bold;" target="_blank" title="Click to know more about DRUG">DRUG</a>.</p></body></html> | |
| 236. |
Number of 6.023 × 1023 atoms present in one mole of a gas at STP is |
| Answer» <html><body><p> 6.02310<sup>23</sup></p><br/><br/><p>Number of 6.023 × 10<sup>23</sup> <a href="https://interviewquestions.tuteehub.com/tag/atoms-887421" style="font-weight:bold;" target="_blank" title="Click to know more about ATOMS">ATOMS</a> present in one <a href="https://interviewquestions.tuteehub.com/tag/mole-1100299" style="font-weight:bold;" target="_blank" title="Click to know more about MOLE">MOLE</a> of a <a href="https://interviewquestions.tuteehub.com/tag/gas-1003521" style="font-weight:bold;" target="_blank" title="Click to know more about GAS">GAS</a> at STP is 6.023 × 10<sup>23</sup>.</p></body></html> | |
| 237. |
Which of the following is the major constituent of LPG? |
| Answer» <html><body><p> Butane</p><br/><br/><p>Butanes are highly flammable, colourless, <a href="https://interviewquestions.tuteehub.com/tag/easily-964537" style="font-weight:bold;" target="_blank" title="Click to know more about EASILY">EASILY</a> <a href="https://interviewquestions.tuteehub.com/tag/liquefied-7694181" style="font-weight:bold;" target="_blank" title="Click to know more about LIQUEFIED">LIQUEFIED</a> gases. When blended with propane and other hydrocarbons, it is <a href="https://interviewquestions.tuteehub.com/tag/referred-7264329" style="font-weight:bold;" target="_blank" title="Click to know more about REFERRED">REFERRED</a> to commercially as LPG, for liquefied <a href="https://interviewquestions.tuteehub.com/tag/petroleum-22379" style="font-weight:bold;" target="_blank" title="Click to know more about PETROLEUM">PETROLEUM</a> gas.</p></body></html> | |
| 238. |
The gas used for filling weather balloons is |
| Answer» <html><body><p> Helium</p><br/><br/><p>A balloon is an inflatable flexible bag filled with a gas, such as helium, hydrogen, nitrous oxide, oxygen, or air. Modern balloons can be made from materials such as rubber, latex, polychloroprene, or a nylon <a href="https://interviewquestions.tuteehub.com/tag/fabric-982562" style="font-weight:bold;" target="_blank" title="Click to know more about FABRIC">FABRIC</a>, while some early balloons were made of dried animal bladders, such as the pig bladder. Some balloons are used for decorative <a href="https://interviewquestions.tuteehub.com/tag/purposes-1173299" style="font-weight:bold;" target="_blank" title="Click to know more about PURPOSES">PURPOSES</a>, while others are used for practical purposes such as meteorology, <a href="https://interviewquestions.tuteehub.com/tag/medical-557835" style="font-weight:bold;" target="_blank" title="Click to know more about MEDICAL">MEDICAL</a> treatment, military defense, or transportation. A balloon’s <a href="https://interviewquestions.tuteehub.com/tag/properties-11511" style="font-weight:bold;" target="_blank" title="Click to know more about PROPERTIES">PROPERTIES</a>, including its low density and low cost, have <a href="https://interviewquestions.tuteehub.com/tag/led-536896" style="font-weight:bold;" target="_blank" title="Click to know more about LED">LED</a> to a wide range of applications. Because of the non combustible property of the helium gas it is widely used in weather balloons rather than hydrogen gas which is highly combustible.</p></body></html> | |
| 239. |
The luster of a metal is due to |
| Answer» <html><body><p> presence of free electrons</p><br/><br/><p>Metallic <a href="https://interviewquestions.tuteehub.com/tag/lustre-545598" style="font-weight:bold;" target="_blank" title="Click to know more about LUSTRE">LUSTRE</a> is due to the mobile electrons <a href="https://interviewquestions.tuteehub.com/tag/present-1163722" style="font-weight:bold;" target="_blank" title="Click to know more about PRESENT">PRESENT</a> in <a href="https://interviewquestions.tuteehub.com/tag/metals-1094891" style="font-weight:bold;" target="_blank" title="Click to know more about METALS">METALS</a> which when de-excites releases <a href="https://interviewquestions.tuteehub.com/tag/energy-15288" style="font-weight:bold;" target="_blank" title="Click to know more about ENERGY">ENERGY</a> in the form of light.</p></body></html> | |
| 240. |
Saline soil contains |
| Answer» <html><body><p> <a href="https://interviewquestions.tuteehub.com/tag/high-479925" style="font-weight:bold;" target="_blank" title="Click to know more about HIGH">HIGH</a> <a href="https://interviewquestions.tuteehub.com/tag/concentration-20558" style="font-weight:bold;" target="_blank" title="Click to know more about CONCENTRATION">CONCENTRATION</a> of <a href="https://interviewquestions.tuteehub.com/tag/salt-1193804" style="font-weight:bold;" target="_blank" title="Click to know more about SALT">SALT</a></p><br/><br/><p>Saline <a href="https://interviewquestions.tuteehub.com/tag/soil-15956" style="font-weight:bold;" target="_blank" title="Click to know more about SOIL">SOIL</a> <a href="https://interviewquestions.tuteehub.com/tag/contains-11473" style="font-weight:bold;" target="_blank" title="Click to know more about CONTAINS">CONTAINS</a> high concentration of salt.</p></body></html> | |
| 241. |
Hard water and soft water can be distinguished by using |
| Answer» <html><body><p> <a href="https://interviewquestions.tuteehub.com/tag/detergent-437903" style="font-weight:bold;" target="_blank" title="Click to know more about DETERGENT">DETERGENT</a></p><br/><br/><p>Hard <a href="https://interviewquestions.tuteehub.com/tag/water-1449333" style="font-weight:bold;" target="_blank" title="Click to know more about WATER">WATER</a> and <a href="https://interviewquestions.tuteehub.com/tag/soft-631843" style="font-weight:bold;" target="_blank" title="Click to know more about SOFT">SOFT</a> water can be <a href="https://interviewquestions.tuteehub.com/tag/distinguished-440820" style="font-weight:bold;" target="_blank" title="Click to know more about DISTINGUISHED">DISTINGUISHED</a> by <a href="https://interviewquestions.tuteehub.com/tag/using-7379753" style="font-weight:bold;" target="_blank" title="Click to know more about USING">USING</a> detergent.</p></body></html> | |
| 242. |
Which of the following is used to increase the anti-knocking property of petrol ? |
| Answer» <html><body><p> Tetraethyl <a href="https://interviewquestions.tuteehub.com/tag/lead-540361" style="font-weight:bold;" target="_blank" title="Click to know more about LEAD">LEAD</a></p><br/><br/><p>An anti-knocking agent is the substance which is used to reduce the engine knocking. It increases the <a href="https://interviewquestions.tuteehub.com/tag/octane-1128027" style="font-weight:bold;" target="_blank" title="Click to know more about OCTANE">OCTANE</a> number of the fuel. It helps in auto-ignition by raising the <a href="https://interviewquestions.tuteehub.com/tag/temperature-11887" style="font-weight:bold;" target="_blank" title="Click to know more about TEMPERATURE">TEMPERATURE</a> and pressure. <a href="https://interviewquestions.tuteehub.com/tag/tel-659689" style="font-weight:bold;" target="_blank" title="Click to know more about TEL">TEL</a> is tetraethyl Lead which is used as an anti-knocking compound.</p></body></html> | |
| 243. |
The lustre of the metals is because of |
| Answer» <html><body><p> Reflection of light due to the presence of free electrons</p><br/><br/><p>Lustre (or luster) is the way light interacts with the surface of a crystal, rock, or mineral. The word traces its origins back to the latin lux, meaning “light”, and generally implies radiance, gloss, or brilliance. Metals in general have high electrical conductivity, high thermal conductivity, and high density. Typically they are malleable and ductile, deforming under stress without cleaving. In terms of optical properties, metals are shiny and lustrous. Sheets of <a href="https://interviewquestions.tuteehub.com/tag/metal-1094457" style="font-weight:bold;" target="_blank" title="Click to know more about METAL">METAL</a> beyond a few micrometres in <a href="https://interviewquestions.tuteehub.com/tag/thickness-707636" style="font-weight:bold;" target="_blank" title="Click to know more about THICKNESS">THICKNESS</a> appear opaque, but gold leaf transmits <a href="https://interviewquestions.tuteehub.com/tag/green-476835" style="font-weight:bold;" target="_blank" title="Click to know more about GREEN">GREEN</a> light. Metallic (or splendant) minerals have the lustre of polished metal, and with ideal surfaces will work as a reflective surface. Examples <a href="https://interviewquestions.tuteehub.com/tag/include-11332" style="font-weight:bold;" target="_blank" title="Click to know more about INCLUDE">INCLUDE</a> galena, pyrite and magnetite.</p></body></html> | |
| 244. |
Aluminium chloride is |
| Answer» <html><body><p> <a href="https://interviewquestions.tuteehub.com/tag/lewis-541347" style="font-weight:bold;" target="_blank" title="Click to know more about LEWIS">LEWIS</a> <a href="https://interviewquestions.tuteehub.com/tag/acid-847491" style="font-weight:bold;" target="_blank" title="Click to know more about ACID">ACID</a></p><br/><br/><p>Aluminium <a href="https://interviewquestions.tuteehub.com/tag/chloride-915854" style="font-weight:bold;" target="_blank" title="Click to know more about CHLORIDE">CHLORIDE</a> is Lewis acid.</p></body></html> | |
| 245. |
A balloon filled with helium rises in air because |
| Answer» <html><body><p> <a href="https://interviewquestions.tuteehub.com/tag/helium-484142" style="font-weight:bold;" target="_blank" title="Click to know more about HELIUM">HELIUM</a> is less <a href="https://interviewquestions.tuteehub.com/tag/dense-431539" style="font-weight:bold;" target="_blank" title="Click to know more about DENSE">DENSE</a> than air</p><br/><br/><p>In the <a href="https://interviewquestions.tuteehub.com/tag/beginning-894536" style="font-weight:bold;" target="_blank" title="Click to know more about BEGINNING">BEGINNING</a> the balloon filled with helium rieses in air because weight of the air displaced by balloon is more than the weight of the balloon and helium <a href="https://interviewquestions.tuteehub.com/tag/gas-1003521" style="font-weight:bold;" target="_blank" title="Click to know more about GAS">GAS</a> filled inside balloon. We know that the density of air and the value of acceleration due to gravity decreases with height.</p></body></html> | |
| 246. |
The name of unreactive gas is |
| Answer» <html><body><p> Nitrogen</p><br/><br/><p>Nitrogen is <a href="https://interviewquestions.tuteehub.com/tag/chemically-915043" style="font-weight:bold;" target="_blank" title="Click to know more about CHEMICALLY">CHEMICALLY</a> unreactive because it has a strong triple bond which binds the two nitrogen atoms together making it harder for it to be broken. It does not burn, and at <a href="https://interviewquestions.tuteehub.com/tag/ordinary-1138437" style="font-weight:bold;" target="_blank" title="Click to know more about ORDINARY">ORDINARY</a> temperatures it does not <a href="https://interviewquestions.tuteehub.com/tag/react-613674" style="font-weight:bold;" target="_blank" title="Click to know more about REACT">REACT</a> with other <a href="https://interviewquestions.tuteehub.com/tag/elements-969381" style="font-weight:bold;" target="_blank" title="Click to know more about ELEMENTS">ELEMENTS</a>.</p></body></html> | |
| 247. |
'Atomic theory' of matter was given by |
| Answer» <html><body><p> Dalton</p><br/><br/><p>John Dalton (1766-1844) <a href="https://interviewquestions.tuteehub.com/tag/developed-431631" style="font-weight:bold;" target="_blank" title="Click to know more about DEVELOPED">DEVELOPED</a> the <a href="https://interviewquestions.tuteehub.com/tag/first-461760" style="font-weight:bold;" target="_blank" title="Click to know more about FIRST">FIRST</a> useful <a href="https://interviewquestions.tuteehub.com/tag/atomic-2477" style="font-weight:bold;" target="_blank" title="Click to know more about ATOMIC">ATOMIC</a> <a href="https://interviewquestions.tuteehub.com/tag/theory-706806" style="font-weight:bold;" target="_blank" title="Click to know more about THEORY">THEORY</a> of matter.</p></body></html> | |
| 248. |
An example of heterocyclic compound is |
| Answer» <html><body><p> Furan</p><br/><br/><p>The most common <a href="https://interviewquestions.tuteehub.com/tag/heterocycles-2701075" style="font-weight:bold;" target="_blank" title="Click to know more about HETEROCYCLES">HETEROCYCLES</a> are those having five- or six-membered rings and containing heteroatoms of <a href="https://interviewquestions.tuteehub.com/tag/nitrogen-1118291" style="font-weight:bold;" target="_blank" title="Click to know more about NITROGEN">NITROGEN</a> (<a href="https://interviewquestions.tuteehub.com/tag/n-568463" style="font-weight:bold;" target="_blank" title="Click to know more about N">N</a>), <a href="https://interviewquestions.tuteehub.com/tag/oxygen-1144542" style="font-weight:bold;" target="_blank" title="Click to know more about OXYGEN">OXYGEN</a> (O), or sulfur (S). The <a href="https://interviewquestions.tuteehub.com/tag/best-390038" style="font-weight:bold;" target="_blank" title="Click to know more about BEST">BEST</a> known of the simple heterocyclic compounds are pyridine, pyrrole, furan, and thiophene.</p></body></html> | |
| 249. |
A fertile soil is likely to have a pH of |
| Answer» <html><body><p> 6-7</p><br/><br/><p>A <a href="https://interviewquestions.tuteehub.com/tag/fertile-456939" style="font-weight:bold;" target="_blank" title="Click to know more about FERTILE">FERTILE</a> <a href="https://interviewquestions.tuteehub.com/tag/soil-15956" style="font-weight:bold;" target="_blank" title="Click to know more about SOIL">SOIL</a> is <a href="https://interviewquestions.tuteehub.com/tag/likely-537197" style="font-weight:bold;" target="_blank" title="Click to know more about LIKELY">LIKELY</a> to have a <a href="https://interviewquestions.tuteehub.com/tag/ph-1145128" style="font-weight:bold;" target="_blank" title="Click to know more about PH">PH</a> of 6-7.</p></body></html> | |
| 250. |
The hottest part of the gas flame is known as |
| Answer» <html><body><p> <a href="https://interviewquestions.tuteehub.com/tag/luminous-2161520" style="font-weight:bold;" target="_blank" title="Click to know more about LUMINOUS">LUMINOUS</a> zone</p><br/><br/><p>The <a href="https://interviewquestions.tuteehub.com/tag/hottest-1030020" style="font-weight:bold;" target="_blank" title="Click to know more about HOTTEST">HOTTEST</a> part of the <a href="https://interviewquestions.tuteehub.com/tag/gas-1003521" style="font-weight:bold;" target="_blank" title="Click to know more about GAS">GAS</a> <a href="https://interviewquestions.tuteehub.com/tag/flame-992254" style="font-weight:bold;" target="_blank" title="Click to know more about FLAME">FLAME</a> is known as luminous zone.</p></body></html> | |