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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.
| 151. |
Which of the following is not a method of preparing oxygen? |
| Answer» <html><body><p> Decomposition of manganese dioxide</p><br/><br/><p>One of the two <a href="https://interviewquestions.tuteehub.com/tag/chemical-914796" style="font-weight:bold;" target="_blank" title="Click to know more about CHEMICAL">CHEMICAL</a> methods starts from <a href="https://interviewquestions.tuteehub.com/tag/natural-575613" style="font-weight:bold;" target="_blank" title="Click to know more about NATURAL">NATURAL</a> manganese dioxide and converts it <a href="https://interviewquestions.tuteehub.com/tag/using-7379753" style="font-weight:bold;" target="_blank" title="Click to know more about USING">USING</a> dinitrogen tetroxide and water to manganese nitrate solution. Evaporation of the water <a href="https://interviewquestions.tuteehub.com/tag/leaves-1070823" style="font-weight:bold;" target="_blank" title="Click to know more about LEAVES">LEAVES</a> the crystalline nitrate <a href="https://interviewquestions.tuteehub.com/tag/salt-1193804" style="font-weight:bold;" target="_blank" title="Click to know more about SALT">SALT</a>. At temperatures of 400°C, the salt decomposes, releasing N2O4 and leaving a residue of purified manganese dioxide.</p></body></html> | |
| 152. |
Detergents clean surfaces on the principle of |
| Answer» <html><body><p> Surface tension</p><br/><br/><p>Detergents and soaps are used for cleaning because pure water can’t remove oily, organic soiling. Soap cleans by acting as an emulsifier. Basically, soap allows oil and water to mix so that oily grime can be removed during rinsing. Detergents were developed in response to the shortage of the animal and vegetable fats used to make soap during World War I and World War II. Detergents are primarily surfactants, which could be produced easily from petrochemicals. Surfactants lower the surface tension of water, essentially making it ‘wetter’ so that it is less likely to stick to itself and more likely to interact with oil and grease. Modern detergents contain more than surfactants. Cleaning products 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> contain enzymes to <a href="https://interviewquestions.tuteehub.com/tag/degrade-2569591" style="font-weight:bold;" target="_blank" title="Click to know more about DEGRADE">DEGRADE</a> protein-based stains, bleaches to de-colour stains and add power to cleaning agents, and <a href="https://interviewquestions.tuteehub.com/tag/blue-899773" style="font-weight:bold;" target="_blank" title="Click to know more about BLUE">BLUE</a> dyes to counter yellowing. Like soaps, detergents have hydrophobic or water-hating molecular chains and <a href="https://interviewquestions.tuteehub.com/tag/hydrophilic-493215" style="font-weight:bold;" target="_blank" title="Click to know more about HYDROPHILIC">HYDROPHILIC</a> or water-loving components</p></body></html> | |
| 153. |
Philosopher’s Wool is |
| Answer» <html><body><p> <a href="https://interviewquestions.tuteehub.com/tag/zinc-751325" style="font-weight:bold;" target="_blank" title="Click to know more about ZINC">ZINC</a> <a href="https://interviewquestions.tuteehub.com/tag/oxide-1144484" style="font-weight:bold;" target="_blank" title="Click to know more about OXIDE">OXIDE</a></p><br/><br/><p>Philosopher’s <a href="https://interviewquestions.tuteehub.com/tag/wool-1458865" style="font-weight:bold;" target="_blank" title="Click to know more about WOOL">WOOL</a> is Zinc oxide.</p></body></html> | |
| 154. |
The metal used to galvanise iron to protect it from rusting is |
| Answer» <html><body><p> Zinc<br/></p><br/><br/><p>Galvanisation or <a href="https://interviewquestions.tuteehub.com/tag/galvanization-470091" style="font-weight:bold;" target="_blank" title="Click to know more about GALVANIZATION">GALVANIZATION</a> (or <a href="https://interviewquestions.tuteehub.com/tag/galvanizing-470095" style="font-weight:bold;" target="_blank" title="Click to know more about GALVANIZING">GALVANIZING</a> as it is most commonly called) is the process of applying a protective zinc coating to <a href="https://interviewquestions.tuteehub.com/tag/iron-1051344" style="font-weight:bold;" target="_blank" title="Click to know more about IRON">IRON</a> or steel, to prevent <a href="https://interviewquestions.tuteehub.com/tag/rusting-1192632" style="font-weight:bold;" target="_blank" title="Click to know more about RUSTING">RUSTING</a>.</p></body></html> | |
| 155. |
The gas involved in Bhopal incident was |
| Answer» <html><body><p> <a href="https://interviewquestions.tuteehub.com/tag/methyl-1095247" style="font-weight:bold;" target="_blank" title="Click to know more about METHYL">METHYL</a> isocyanate</p><br/><br/><p>3 leak of toxic methyl isocyanate <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 a Union <a href="https://interviewquestions.tuteehub.com/tag/carbide-413211" style="font-weight:bold;" target="_blank" title="Click to know more about CARBIDE">CARBIDE</a> plant in the central Indian city of Bhopal produced history's worst industrial disaster, <a href="https://interviewquestions.tuteehub.com/tag/stunning-7387879" style="font-weight:bold;" target="_blank" title="Click to know more about STUNNING">STUNNING</a> India and the <a href="https://interviewquestions.tuteehub.com/tag/world-1460172" style="font-weight:bold;" target="_blank" title="Click to know more about WORLD">WORLD</a>.</p></body></html> | |
| 156. |
Cement is made hard with |
| Answer» <html><body><p> <a href="https://interviewquestions.tuteehub.com/tag/hydration-1033911" style="font-weight:bold;" target="_blank" title="Click to know more about HYDRATION">HYDRATION</a> and dissociation of water</p><br/><br/><p>Cements (e.g., Portland cement) harden because of hydration, chemical <a href="https://interviewquestions.tuteehub.com/tag/reactions-20919" style="font-weight:bold;" target="_blank" title="Click to know more about REACTIONS">REACTIONS</a> that occur independently of the mixture’s water content; they can harden even underwater or when constantly <a href="https://interviewquestions.tuteehub.com/tag/exposed-7260805" style="font-weight:bold;" target="_blank" title="Click to know more about EXPOSED">EXPOSED</a> to wet weather. The chemical reaction that results when the anhydrous cement <a href="https://interviewquestions.tuteehub.com/tag/powder-603608" style="font-weight:bold;" target="_blank" title="Click to know more about POWDER">POWDER</a> is mixed with water produces hydrates that are not watersoluble.</p></body></html> | |
| 157. |
Which one element from below list is liquid at room temperature? |
| Answer» <html><body><p> <a href="https://interviewquestions.tuteehub.com/tag/bromine-904632" style="font-weight:bold;" target="_blank" title="Click to know more about BROMINE">BROMINE</a></p><br/><br/><p>The only <a href="https://interviewquestions.tuteehub.com/tag/liquid-1075124" style="font-weight:bold;" target="_blank" title="Click to know more about LIQUID">LIQUID</a> <a href="https://interviewquestions.tuteehub.com/tag/elements-969381" style="font-weight:bold;" target="_blank" title="Click to know more about ELEMENTS">ELEMENTS</a> at standard temperature and pressure are bromine (Br) and <a href="https://interviewquestions.tuteehub.com/tag/mercury-558950" style="font-weight:bold;" target="_blank" title="Click to know more about MERCURY">MERCURY</a> (Hg).</p></body></html> | |
| 158. |
Which one of the following is found in kidney stones? |
| Answer» <html><body><p> Calcium oxalate</p><br/><br/><p>The most common <a href="https://interviewquestions.tuteehub.com/tag/type-715478" style="font-weight:bold;" target="_blank" title="Click to know more about TYPE">TYPE</a> of kidney stone is a calcium oxalate stone. These result when the urine contains low levels of citrate and high levels of calcium and either oxalate or <a href="https://interviewquestions.tuteehub.com/tag/uric-7384538" style="font-weight:bold;" target="_blank" title="Click to know more about URIC">URIC</a> acid. Calcium oxalate <a href="https://interviewquestions.tuteehub.com/tag/stones-1228072" style="font-weight:bold;" target="_blank" title="Click to know more about STONES">STONES</a> are <a href="https://interviewquestions.tuteehub.com/tag/linked-7276088" style="font-weight:bold;" target="_blank" title="Click to know more about LINKED">LINKED</a> with foods high in oxalate, which is a <a href="https://interviewquestions.tuteehub.com/tag/naturally-2859217" style="font-weight:bold;" target="_blank" title="Click to know more about NATURALLY">NATURALLY</a> occurring substance in plants and animals.</p></body></html> | |
| 159. |
The metal that is usually extracted from sea water is |
| Answer» <html><body><p> Mg</p><br/><br/><p>In the US, 63% of <a href="https://interviewquestions.tuteehub.com/tag/magnesium-1082716" style="font-weight:bold;" target="_blank" title="Click to know more about MAGNESIUM">MAGNESIUM</a> production came from seawater and brines during 2015. The <a href="https://interviewquestions.tuteehub.com/tag/metal-1094457" style="font-weight:bold;" target="_blank" title="Click to know more about METAL">METAL</a> is extracted from seawater and brines by <a href="https://interviewquestions.tuteehub.com/tag/means-1091780" style="font-weight:bold;" target="_blank" title="Click to know more about MEANS">MEANS</a> of electrolysis, a process that requires the passing of a current through a <a href="https://interviewquestions.tuteehub.com/tag/molten-548661" style="font-weight:bold;" target="_blank" title="Click to know more about MOLTEN">MOLTEN</a> salt.</p></body></html> | |
| 160. |
Normal rainwater is slightly acidic due to the presence of |
| Answer» <html><body><p> Carbon <a href="https://interviewquestions.tuteehub.com/tag/dioxide-954355" style="font-weight:bold;" target="_blank" title="Click to know more about DIOXIDE">DIOXIDE</a></p><br/><br/><p>The acidity of rainwater comes from the natural presence of three substances (CO<sub>2</sub>, NO, and SO<sub>2</sub>) <a href="https://interviewquestions.tuteehub.com/tag/found-458144" style="font-weight:bold;" target="_blank" title="Click to know more about FOUND">FOUND</a> in the troposphere (the lowest layer of the atmosphere). As is seen in Table I, carbon dioxide (CO<sub>2</sub>) is present in the greatest concentration and therefore <a href="https://interviewquestions.tuteehub.com/tag/contributes-932548" style="font-weight:bold;" target="_blank" title="Click to know more about CONTRIBUTES">CONTRIBUTES</a> the most to the natural acidity of rainwater.</p></body></html> | |
| 161. |
A thick paste of cement, sand and water is called |
| Answer» <html><body><p> Mortar</p><br/><br/><p>Mortar is a workable paste <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 bind <a href="https://interviewquestions.tuteehub.com/tag/building-905221" style="font-weight:bold;" target="_blank" title="Click to know more about BUILDING">BUILDING</a> <a href="https://interviewquestions.tuteehub.com/tag/blocks-21562" style="font-weight:bold;" target="_blank" title="Click to know more about BLOCKS">BLOCKS</a> such as bricks units to fill and seal the <a href="https://interviewquestions.tuteehub.com/tag/gaps-1003446" style="font-weight:bold;" target="_blank" title="Click to know more about GAPS">GAPS</a>. It is a mix of sand, a binder and water.</p></body></html> | |
| 162. |
Commonly used antiseptic 'Dettol' is a mixture of |
| Answer» <html><body><p> <a href="https://interviewquestions.tuteehub.com/tag/chloroxylenol-915953" style="font-weight:bold;" target="_blank" title="Click to know more about CHLOROXYLENOL">CHLOROXYLENOL</a> + terepineol</p><br/><br/><p>Commonly <a href="https://interviewquestions.tuteehub.com/tag/used-2318798" style="font-weight:bold;" target="_blank" title="Click to know more about USED">USED</a> <a href="https://interviewquestions.tuteehub.com/tag/antiseptic-878832" style="font-weight:bold;" target="_blank" title="Click to know more about ANTISEPTIC">ANTISEPTIC</a>, <a href="https://interviewquestions.tuteehub.com/tag/dettol-949991" style="font-weight:bold;" target="_blank" title="Click to know more about DETTOL">DETTOL</a> is a <a href="https://interviewquestions.tuteehub.com/tag/mixture-1098735" style="font-weight:bold;" target="_blank" title="Click to know more about MIXTURE">MIXTURE</a> of chloroxylenol and terpineol.</p></body></html> | |
| 163. |
Where does the oxygen that keeps us alive come from? |
| Answer» <html><body><p> Water</p><br/><br/><p>Since water and carbon dioxide are both compounds which contain oxygen, it is possible to obtain oxygen from either. The oxygen produced from photosynthesis is not released into the air. It is not until <a href="https://interviewquestions.tuteehub.com/tag/cellular-414571" style="font-weight:bold;" target="_blank" title="Click to know more about CELLULAR">CELLULAR</a> respiration that oxygen is released. The oxygen comes from water. The water molecules are split at 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>” of photosynthesis for the electrons. These electrons eventually make their way to the electron transport chain, where oxygen is the final electron <a href="https://interviewquestions.tuteehub.com/tag/accept-846678" style="font-weight:bold;" target="_blank" title="Click to know more about ACCEPT">ACCEPT</a>, and then released into the air. <a href="https://interviewquestions.tuteehub.com/tag/scientists-638066" style="font-weight:bold;" target="_blank" title="Click to know more about SCIENTISTS">SCIENTISTS</a> agree that there’s oxygen from ocean plants in every breath we take. Most of this oxygen comes from tiny ocean plants – called <a href="https://interviewquestions.tuteehub.com/tag/phytoplankton-1154334" style="font-weight:bold;" target="_blank" title="Click to know more about PHYTOPLANKTON">PHYTOPLANKTON</a> – that live near the water’s surface and drift with the currents. Like all plants, they photosynthesize – that is, they use sunlight and carbon dioxide to make food. A byproduct of photosynthesis is oxygen.</p></body></html> | |
| 164. |
The chief constituent of natural gas is: |
| Answer» <html><body><p> Methane</p><br/><br/><p>Naturally occurring mixture of a <a href="https://interviewquestions.tuteehub.com/tag/hydrocarbon-1034072" style="font-weight:bold;" target="_blank" title="Click to know more about HYDROCARBON">HYDROCARBON</a> gas with methane being the <a href="https://interviewquestions.tuteehub.com/tag/primary-1165403" style="font-weight:bold;" target="_blank" title="Click to know more about PRIMARY">PRIMARY</a> constituent is <a href="https://interviewquestions.tuteehub.com/tag/called-907796" style="font-weight:bold;" target="_blank" title="Click to know more about CALLED">CALLED</a> natural gas. Other gases found in <a href="https://interviewquestions.tuteehub.com/tag/minute-1098123" style="font-weight:bold;" target="_blank" title="Click to know more about MINUTE">MINUTE</a> traces are hydrogen, hydrogen sulphide, nitrogen, carbon monoxide and carbon dioxide.</p></body></html> | |
| 165. |
Which one is not a pure form of carbon? |
| Answer» <html><body><p> Gold</p><br/><br/><p>There are many pure <a href="https://interviewquestions.tuteehub.com/tag/forms-11384" style="font-weight:bold;" target="_blank" title="Click to know more about FORMS">FORMS</a> of <a href="https://interviewquestions.tuteehub.com/tag/carbon-16249" style="font-weight:bold;" target="_blank" title="Click to know more about CARBON">CARBON</a> in <a href="https://interviewquestions.tuteehub.com/tag/earth-13129" style="font-weight:bold;" target="_blank" title="Click to know more about EARTH">EARTH</a>, but Diamond is the purest <a href="https://interviewquestions.tuteehub.com/tag/form-996208" style="font-weight:bold;" target="_blank" title="Click to know more about FORM">FORM</a> of carbon. Other pure forms are graphite, fullerene and <a href="https://interviewquestions.tuteehub.com/tag/charcoal-914373" style="font-weight:bold;" target="_blank" title="Click to know more about CHARCOAL">CHARCOAL</a>. Gold is not a form of carbon.</p></body></html> | |
| 166. |
The element used for making solar cells is |
| Answer» <html><body><p> Silicon</p><br/><br/><p>Because of its unique internal <a href="https://interviewquestions.tuteehub.com/tag/atomic-2477" style="font-weight:bold;" target="_blank" title="Click to know more about ATOMIC">ATOMIC</a> structure and its ready availability, silicon is <a href="https://interviewquestions.tuteehub.com/tag/widely-732348" style="font-weight:bold;" target="_blank" title="Click to know more about WIDELY">WIDELY</a> used for solar cells. One of the elements of the <a href="https://interviewquestions.tuteehub.com/tag/periodic-598580" style="font-weight:bold;" target="_blank" title="Click to know more about PERIODIC">PERIODIC</a> Table of the Elements, silicon is known as a semiconductor, a substance that conducts electricity when there is a <a href="https://interviewquestions.tuteehub.com/tag/change-913808" style="font-weight:bold;" target="_blank" title="Click to know more about CHANGE">CHANGE</a> to its environment.</p></body></html> | |
| 167. |
Which of the following is an antidiabatic drug? |
| Answer» <html><body><p> Insulin</p><br/><br/><p>Insulin is an antidiabatic <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> | |
| 168. |
The National Chemical Laboratory is situated in |
| Answer» <html><body><p> <a href="https://interviewquestions.tuteehub.com/tag/pune-57" style="font-weight:bold;" target="_blank" title="Click to know more about PUNE">PUNE</a></p><br/><br/><p>National Chemical <a href="https://interviewquestions.tuteehub.com/tag/laboratory-1065354" style="font-weight:bold;" target="_blank" title="Click to know more about LABORATORY">LABORATORY</a> (CSIR-NCL), Pune, established in 1950, is a <a href="https://interviewquestions.tuteehub.com/tag/constituent-930772" style="font-weight:bold;" target="_blank" title="Click to know more about CONSTITUENT">CONSTITUENT</a> laboratory of Council of Scientific and Industrial <a href="https://interviewquestions.tuteehub.com/tag/research-1185894" style="font-weight:bold;" target="_blank" title="Click to know more about RESEARCH">RESEARCH</a> (CSIR).</p></body></html> | |
| 169. |
What is the covalency of nitrogen in ammonia molecule |
| Answer» <html><body><p> <a href="https://interviewquestions.tuteehub.com/tag/3-301577" style="font-weight:bold;" target="_blank" title="Click to know more about 3">3</a></p><br/><br/><p>Covalency is the number of covalent <a href="https://interviewquestions.tuteehub.com/tag/bond-900583" style="font-weight:bold;" target="_blank" title="Click to know more about BOND">BOND</a> of an element or <a href="https://interviewquestions.tuteehub.com/tag/compounds-927010" style="font-weight:bold;" target="_blank" title="Click to know more about COMPOUNDS">COMPOUNDS</a>. So nitrogen have 3 covalent bond and <a href="https://interviewquestions.tuteehub.com/tag/1-256655" style="font-weight:bold;" target="_blank" title="Click to know more about 1">1</a> co ordinate bond. So covalency of nitrogen is 3.</p></body></html> | |
| 170. |
Threshold limit value of copper in the atmospheric air is |
| Answer» <html><body><p> 1.0 mg/m<sup>3</sup><br/></p><br/><br/><p>The <a href="https://interviewquestions.tuteehub.com/tag/threshold-1419373" style="font-weight:bold;" target="_blank" title="Click to know more about THRESHOLD">THRESHOLD</a> <a href="https://interviewquestions.tuteehub.com/tag/limit-1074025" style="font-weight:bold;" target="_blank" title="Click to know more about LIMIT">LIMIT</a> <a href="https://interviewquestions.tuteehub.com/tag/value-1442530" style="font-weight:bold;" target="_blank" title="Click to know more about VALUE">VALUE</a> (<a href="https://interviewquestions.tuteehub.com/tag/tlv-661271" style="font-weight:bold;" target="_blank" title="Click to know more about TLV">TLV</a>) of copper in <a href="https://interviewquestions.tuteehub.com/tag/atmospheric-887165" style="font-weight:bold;" target="_blank" title="Click to know more about ATMOSPHERIC">ATMOSPHERIC</a> air is 1.0 mg/m<sup>3</sup>.</p></body></html> | |
| 171. |
Which one among the following is not a mixture? |
| Answer» <html><body><p> <a href="https://interviewquestions.tuteehub.com/tag/graphite-15721" style="font-weight:bold;" target="_blank" title="Click to know more about GRAPHITE">GRAPHITE</a></p><br/><br/><p>Graphite is not a <a href="https://interviewquestions.tuteehub.com/tag/mixture-1098735" style="font-weight:bold;" target="_blank" title="Click to know more about MIXTURE">MIXTURE</a>. This is because graphite is a pure element which cannot <a href="https://interviewquestions.tuteehub.com/tag/split-11788" style="font-weight:bold;" target="_blank" title="Click to know more about SPLIT">SPLIT</a> into its <a href="https://interviewquestions.tuteehub.com/tag/constituent-930772" style="font-weight:bold;" target="_blank" title="Click to know more about CONSTITUENT">CONSTITUENT</a> particles.</p></body></html> | |
| 172. |
The mass of P4O10 that will be obtained from the reaction of 1.33 gram of P4 and 5.07 of oxygen is |
| Answer» <html><body><p> 3.05 gram</p><br/><br/><p>Balanced chemical <a href="https://interviewquestions.tuteehub.com/tag/equation-974081" style="font-weight:bold;" target="_blank" title="Click to know more about EQUATION">EQUATION</a>:<br/>P<sub>4</sub> + 5O<sub>2</sub> --------> P<sub>4</sub>O<sub>10</sub><br/>1 mol 5 mol 1 mol<br/>124g 160g 284g<br/>Here limiting <a href="https://interviewquestions.tuteehub.com/tag/reagent-1178480" style="font-weight:bold;" target="_blank" title="Click to know more about REAGENT">REAGENT</a> is P<sub>4</sub>.<br/>So, 124g of P<sub>4</sub> produce P<sub>4</sub>O<sub>10</sub> = 284g<br/>Therefore,<br/>1.33g of P<sub>4</sub> produce P<sub>4</sub>O<sub>10</sub> = (284/124)*1.33<br/>= 3.05g</p></body></html> | |
| 173. |
Cement containing excess amount of lime |
| Answer» <html><body><p> Becomes more strong</p><br/><br/><p>In cement almost entire amount of lime is present in <a href="https://interviewquestions.tuteehub.com/tag/combined-409631" style="font-weight:bold;" target="_blank" title="Click to know more about COMBINED">COMBINED</a> <a href="https://interviewquestions.tuteehub.com/tag/state-21805" style="font-weight:bold;" target="_blank" title="Click to know more about STATE">STATE</a> as <a href="https://interviewquestions.tuteehub.com/tag/calcium-412119" style="font-weight:bold;" target="_blank" title="Click to know more about CALCIUM">CALCIUM</a> silicates and calcium aluminates. Cement containing <a href="https://interviewquestions.tuteehub.com/tag/excess-978535" style="font-weight:bold;" target="_blank" title="Click to know more about EXCESS">EXCESS</a> amount of lime cracks during setting while cement containing less amount of lime is weak in strength. Setting of cement is an <a href="https://interviewquestions.tuteehub.com/tag/exothermic-2066005" style="font-weight:bold;" target="_blank" title="Click to know more about EXOTHERMIC">EXOTHERMIC</a> process.</p></body></html> | |
| 174. |
Which one of the following elements is an example of noble gas ? |
| Answer» <html><body><p> Helium</p><br/><br/><p>Helium is an <a href="https://interviewquestions.tuteehub.com/tag/example-978283" style="font-weight:bold;" target="_blank" title="Click to know more about EXAMPLE">EXAMPLE</a> of <a href="https://interviewquestions.tuteehub.com/tag/noble-2197707" style="font-weight:bold;" target="_blank" title="Click to know more about NOBLE">NOBLE</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> | |
| 175. |
The hardest form of carbon is |
| Answer» <html><body><p> diamond</p><br/><br/><p>The allotropes of <a href="https://interviewquestions.tuteehub.com/tag/carbon-16249" style="font-weight:bold;" target="_blank" title="Click to know more about CARBON">CARBON</a> include graphite, <a href="https://interviewquestions.tuteehub.com/tag/one-585732" style="font-weight:bold;" target="_blank" title="Click to know more about ONE">ONE</a> of the softest <a href="https://interviewquestions.tuteehub.com/tag/known-534098" style="font-weight:bold;" target="_blank" title="Click to know more about KNOWN">KNOWN</a> substances, and diamond, the hardest naturally <a href="https://interviewquestions.tuteehub.com/tag/occurring-1127842" style="font-weight:bold;" target="_blank" title="Click to know more about OCCURRING">OCCURRING</a> substance.</p></body></html> | |
| 176. |
Who developed the model of atomic structure ? |
| Answer» <html><body><p> Bohr and <a href="https://interviewquestions.tuteehub.com/tag/rutherford-628094" style="font-weight:bold;" target="_blank" title="Click to know more about RUTHERFORD">RUTHERFORD</a></p><br/><br/><p>Bohr and Rutherford developed the <a href="https://interviewquestions.tuteehub.com/tag/model-942" style="font-weight:bold;" target="_blank" title="Click to know more about MODEL">MODEL</a> of <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/structure-1230280" style="font-weight:bold;" target="_blank" title="Click to know more about STRUCTURE">STRUCTURE</a>.</p></body></html> | |
| 177. |
An atom of an element has atomic number 17 and mass number 36. The number of neutrons in its nucleus is |
| Answer» <html><body><p> 19</p><br/><br/><p>An atom of an <a href="https://interviewquestions.tuteehub.com/tag/element-969236" style="font-weight:bold;" target="_blank" title="Click to know more about ELEMENT">ELEMENT</a> has atomic number 17 and <a href="https://interviewquestions.tuteehub.com/tag/mass-1088425" style="font-weight:bold;" target="_blank" title="Click to know more about MASS">MASS</a> number <a href="https://interviewquestions.tuteehub.com/tag/36-309156" style="font-weight:bold;" target="_blank" title="Click to know more about 36">36</a>. The number of <a href="https://interviewquestions.tuteehub.com/tag/neutrons-1114464" style="font-weight:bold;" target="_blank" title="Click to know more about NEUTRONS">NEUTRONS</a> in its nucleus is 19.</p></body></html> | |
| 178. |
Which one is the most reactive gaseous element? |
| Answer» <html><body><p> Flourine</p><br/><br/><p>Flourine is the most <a href="https://interviewquestions.tuteehub.com/tag/reactive-1178230" style="font-weight:bold;" target="_blank" title="Click to know more about REACTIVE">REACTIVE</a> <a href="https://interviewquestions.tuteehub.com/tag/gaseous-467815" style="font-weight:bold;" target="_blank" title="Click to know more about GASEOUS">GASEOUS</a> <a href="https://interviewquestions.tuteehub.com/tag/element-969236" style="font-weight:bold;" target="_blank" title="Click to know more about ELEMENT">ELEMENT</a>.</p></body></html> | |
| 179. |
Substance used as an anti freeze in radiators of automobiles is : |
| Answer» <html><body><p> <a href="https://interviewquestions.tuteehub.com/tag/methyl-1095247" style="font-weight:bold;" target="_blank" title="Click to know more about METHYL">METHYL</a> <a href="https://interviewquestions.tuteehub.com/tag/alcohol-853024" style="font-weight:bold;" target="_blank" title="Click to know more about ALCOHOL">ALCOHOL</a> and H<sub>2</sub>O</p><br/><br/><p>Methyl alcohol and <a href="https://interviewquestions.tuteehub.com/tag/water-1449333" style="font-weight:bold;" target="_blank" title="Click to know more about WATER">WATER</a> are used as an anti-freeze in <a href="https://interviewquestions.tuteehub.com/tag/radiators-1175885" style="font-weight:bold;" target="_blank" title="Click to know more about RADIATORS">RADIATORS</a> of automobiles.</p></body></html> | |
| 180. |
The percentage of Nitrogen in Air is |
| Answer» <html><body><p> 78.03</p><br/><br/><p>The air in Earth's atmosphere is made up of <a href="https://interviewquestions.tuteehub.com/tag/approximately-380771" style="font-weight:bold;" target="_blank" title="Click to know more about APPROXIMATELY">APPROXIMATELY</a> 78 percent <a href="https://interviewquestions.tuteehub.com/tag/nitrogen-1118291" style="font-weight:bold;" target="_blank" title="Click to know more about NITROGEN">NITROGEN</a> and 21 percent oxygen. Air also has small amounts of <a href="https://interviewquestions.tuteehub.com/tag/lots-544791" style="font-weight:bold;" target="_blank" title="Click to know more about LOTS">LOTS</a> of other gases, too, such as carbon dioxide, neon, and <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></body></html> | |
| 181. |
Which of the inert gases can form compounds? |
| Answer» <html><body><p> Xenon</p><br/><br/><p>Xenon can <a href="https://interviewquestions.tuteehub.com/tag/form-996208" style="font-weight:bold;" target="_blank" title="Click to know more about FORM">FORM</a> <a href="https://interviewquestions.tuteehub.com/tag/compounds-927010" style="font-weight:bold;" target="_blank" title="Click to know more about COMPOUNDS">COMPOUNDS</a>.</p></body></html> | |
| 182. |
Concentration of a material which is lethal to 50% animal is called |
| Answer» <html><body><p> LD<sub>50</sub></p><br/><br/><p>LD stands for "Lethal Dose". LD50 is the <a href="https://interviewquestions.tuteehub.com/tag/amount-374803" style="font-weight:bold;" target="_blank" title="Click to know more about AMOUNT">AMOUNT</a> of a <a href="https://interviewquestions.tuteehub.com/tag/material-1089170" style="font-weight:bold;" target="_blank" title="Click to know more about MATERIAL">MATERIAL</a>, given all at once, which causes the death of 50% (one half) of a <a href="https://interviewquestions.tuteehub.com/tag/group-1013370" style="font-weight:bold;" target="_blank" title="Click to know more about GROUP">GROUP</a> of test animals. The LD50 is one <a href="https://interviewquestions.tuteehub.com/tag/way-1450548" style="font-weight:bold;" target="_blank" title="Click to know more about WAY">WAY</a> to measure the short-term poisoning potential (acute toxicity) of a material.</p></body></html> | |
| 183. |
Which of the following is used in making smoke bombs? |
| Answer» <html><body><p> Carbon</p><br/><br/><p>A smoke bomb is a firework designed to produce smoke <a href="https://interviewquestions.tuteehub.com/tag/upon-2315586" style="font-weight:bold;" target="_blank" title="Click to know more about UPON">UPON</a> ignition. Smoke bombs are useful to military units, airsoft games, paintball games, selfdefense and pranks. The smoke bomb was first created in 1848, by the <a href="https://interviewquestions.tuteehub.com/tag/inventor-518901" style="font-weight:bold;" target="_blank" title="Click to know more about INVENTOR">INVENTOR</a> Robert Yale. He developed 17th century Chinese-style fireworks and later modified the formula to produce more smoke for a longer <a href="https://interviewquestions.tuteehub.com/tag/period-1151023" style="font-weight:bold;" target="_blank" title="Click to know more about PERIOD">PERIOD</a> of time. Coloured smoke devices use a formula that consists of an oxidizer (typically potassium chlorate, KClO<sub>3</sub>), a fuel (<a href="https://interviewquestions.tuteehub.com/tag/generally-471963" style="font-weight:bold;" target="_blank" title="Click to know more about GENERALLY">GENERALLY</a> sugar), a moderant (such as sodium bicarbonate) to <a href="https://interviewquestions.tuteehub.com/tag/keep-527902" style="font-weight:bold;" target="_blank" title="Click to know more about KEEP">KEEP</a> the reaction from getting too hot, and a powdered organic dye. The burning of this mixture evaporates the dye and forces it out of the device, where it condenses in the atmosphere to form a “smoke” of finely dispersed particles. A smoke ball is a hollow, cherry-sized sphere of brightly coloured clay or cardboard filled with a smoke-generating composition that produces a forceful jet of coloured smoke for 10 to 15 seconds.</p></body></html> | |
| 184. |
Iodine value is used to estimate |
| Answer» <html><body><p> Unsaturation in <a href="https://interviewquestions.tuteehub.com/tag/oil-1129840" style="font-weight:bold;" target="_blank" title="Click to know more about OIL">OIL</a><br/></p><br/><br/><p>Iodine value can be <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 measure the degree of unsaturation of oils and fats. The <a href="https://interviewquestions.tuteehub.com/tag/results-2643" style="font-weight:bold;" target="_blank" title="Click to know more about RESULTS">RESULTS</a> are normally expressed as the <a href="https://interviewquestions.tuteehub.com/tag/number-582134" style="font-weight:bold;" target="_blank" title="Click to know more about NUMBER">NUMBER</a> of grams of iodine absorbed by 100 <a href="https://interviewquestions.tuteehub.com/tag/g-1003017" style="font-weight:bold;" target="_blank" title="Click to know more about G">G</a> of oil or fat, considering the conditions of the test.</p></body></html> | |
| 185. |
An element of atomic no. 29 belongs to |
| Answer» <html><body><p> D-block</p><br/><br/><p>Copper (Cu) has the <a href="https://interviewquestions.tuteehub.com/tag/atomic-2477" style="font-weight:bold;" target="_blank" title="Click to know more about ATOMIC">ATOMIC</a> number of <a href="https://interviewquestions.tuteehub.com/tag/29-299821" style="font-weight:bold;" target="_blank" title="Click to know more about 29">29</a>. Copper belongs to the d-block which is the collective name for <a href="https://interviewquestions.tuteehub.com/tag/groups-1013609" style="font-weight:bold;" target="_blank" title="Click to know more about GROUPS">GROUPS</a> 3 to 12 in the periodic table. Most of the d-block elements are considered to be metals, with a <a href="https://interviewquestions.tuteehub.com/tag/common-923599" style="font-weight:bold;" target="_blank" title="Click to know more about COMMON">COMMON</a> lustrous metallic appearance.</p></body></html> | |
| 186. |
The formula C6H5-CO-CH3 represents |
| Answer» <html><body><p> <a href="https://interviewquestions.tuteehub.com/tag/acetophenone-366790" style="font-weight:bold;" target="_blank" title="Click to know more about ACETOPHENONE">ACETOPHENONE</a></p><br/><br/><p>The <a href="https://interviewquestions.tuteehub.com/tag/formula-464310" style="font-weight:bold;" target="_blank" title="Click to know more about FORMULA">FORMULA</a> C<sub>6</sub>H<sub>5</sub>-CO-CH<sub>3</sub> <a href="https://interviewquestions.tuteehub.com/tag/represents-1185452" style="font-weight:bold;" target="_blank" title="Click to know more about REPRESENTS">REPRESENTS</a> Acetophenone.</p></body></html> | |
| 187. |
Name two elements that find wide application in transistor industry. |
| Answer» <html><body><p> Silicon and Germanium</p><br/><br/><p>A transistor is a semiconductor device used to amplify and switch electronic signals and electrical <a href="https://interviewquestions.tuteehub.com/tag/power-2475" style="font-weight:bold;" target="_blank" title="Click to know more about POWER">POWER</a>. Semiconductor material (date first used): the metalloids germanium (1947) and silicon (1954) — in amorphous, polycrystalline and mono-crystalline form; the compounds gallium <a href="https://interviewquestions.tuteehub.com/tag/arsenide-884739" style="font-weight:bold;" target="_blank" title="Click to know more about ARSENIDE">ARSENIDE</a> (1966) and silicon carbide (1997), the alloy silicon-germanium (1989), the allotrope of carbon graphene (research ongoing since <a href="https://interviewquestions.tuteehub.com/tag/2004-289971" style="font-weight:bold;" target="_blank" title="Click to know more about 2004">2004</a>), etc.</p></body></html> | |
| 188. |
Ethylene is a ________ molecule. |
| Answer» <html><body><p> <a href="https://interviewquestions.tuteehub.com/tag/nonpolar-1123545" style="font-weight:bold;" target="_blank" title="Click to know more about NONPOLAR">NONPOLAR</a></p><br/><br/><p>Ethylene is a nonpolar <a href="https://interviewquestions.tuteehub.com/tag/molecule-563028" style="font-weight:bold;" target="_blank" title="Click to know more about MOLECULE">MOLECULE</a>.</p></body></html> | |
| 189. |
The polymer used in making plastic crockery is |
| Answer» <html><body><p> Melamine</p><br/><br/><p>Melamine <a href="https://interviewquestions.tuteehub.com/tag/formaldehyde-996486" style="font-weight:bold;" target="_blank" title="Click to know more about FORMALDEHYDE">FORMALDEHYDE</a> <a href="https://interviewquestions.tuteehub.com/tag/resin-622609" style="font-weight:bold;" target="_blank" title="Click to know more about RESIN">RESIN</a> is the <a href="https://interviewquestions.tuteehub.com/tag/polymer-1158585" style="font-weight:bold;" target="_blank" title="Click to know more about POLYMER">POLYMER</a> used for making plastic crockery. Its <a href="https://interviewquestions.tuteehub.com/tag/monomers-1101047" style="font-weight:bold;" target="_blank" title="Click to know more about MONOMERS">MONOMERS</a> are melamine and formaldehyde. Uses : It is used in making plastic (<a href="https://interviewquestions.tuteehub.com/tag/unbreakable-2316743" style="font-weight:bold;" target="_blank" title="Click to know more about UNBREAKABLE">UNBREAKABLE</a>) crockery.</p></body></html> | |
| 190. |
The chemical that is used to ripen mangoes is |
| Answer» <html><body><p> Calcium carbide</p><br/><br/><p>Pouches of calcium carbide are placed with mangoes. When this chemical comes in <a href="https://interviewquestions.tuteehub.com/tag/contact-25916" style="font-weight:bold;" target="_blank" title="Click to know more about CONTACT">CONTACT</a> with moisture, acetylene gas is produced, the <a href="https://interviewquestions.tuteehub.com/tag/effects-449163" style="font-weight:bold;" target="_blank" title="Click to know more about EFFECTS">EFFECTS</a> of which are similar to ethylene, the one that is naturally <a href="https://interviewquestions.tuteehub.com/tag/used-2318798" style="font-weight:bold;" target="_blank" title="Click to know more about USED">USED</a> for fruit <a href="https://interviewquestions.tuteehub.com/tag/ripening-1189649" style="font-weight:bold;" target="_blank" title="Click to know more about RIPENING">RIPENING</a> process.</p></body></html> | |
| 191. |
The alkaloid naturally found in coffee, cocoa and cola nut is |
| Answer» <html><body><p> Caffeine</p><br/><br/><p>Caffeine (C<sub>8</sub>H<sub>10</sub>N<sub>4</sub>O<sub>2</sub>) is a bitter alkaloid found especially in coffee, <a href="https://interviewquestions.tuteehub.com/tag/tea-664165" style="font-weight:bold;" target="_blank" title="Click to know more about TEA">TEA</a>, <a href="https://interviewquestions.tuteehub.com/tag/cacao-411957" style="font-weight:bold;" target="_blank" title="Click to know more about CACAO">CACAO</a>, and <a href="https://interviewquestions.tuteehub.com/tag/kola-2148984" style="font-weight:bold;" target="_blank" title="Click to know more about KOLA">KOLA</a> nuts.</p></body></html> | |
| 192. |
The gas which is mainly responsible for the green house effect is: |
| Answer» <html><body><p> Carbon dioxide</p><br/><br/><p>Carbon dioxide (CO<sub>2</sub>) is the <a href="https://interviewquestions.tuteehub.com/tag/primary-1165403" style="font-weight:bold;" target="_blank" title="Click to know more about PRIMARY">PRIMARY</a> <a href="https://interviewquestions.tuteehub.com/tag/greenhouse-477063" style="font-weight:bold;" target="_blank" title="Click to know more about GREENHOUSE">GREENHOUSE</a> gas emitted through <a href="https://interviewquestions.tuteehub.com/tag/human-1032714" style="font-weight:bold;" target="_blank" title="Click to know more about HUMAN">HUMAN</a> activities.</p></body></html> | |
| 193. |
Which of the toxic heavy metals is found in modern tannery industries ? |
| Answer» <html><body><p> <a href="https://interviewquestions.tuteehub.com/tag/chromium-916213" style="font-weight:bold;" target="_blank" title="Click to know more about CHROMIUM">CHROMIUM</a><br/></p><br/><br/><p>Chromium is mainly found in waste from the <a href="https://interviewquestions.tuteehub.com/tag/chrome-419551" style="font-weight:bold;" target="_blank" title="Click to know more about CHROME">CHROME</a> tanning process; it occurs as part of the retanning system and is displaced from leathers during retanning and dyeing processes. This chrome is discharged from processes in soluble form; however, when mixed with tannery waste waters from other processes (<a href="https://interviewquestions.tuteehub.com/tag/especially-975202" style="font-weight:bold;" target="_blank" title="Click to know more about ESPECIALLY">ESPECIALLY</a> if <a href="https://interviewquestions.tuteehub.com/tag/proteins-607691" style="font-weight:bold;" target="_blank" title="Click to know more about PROTEINS">PROTEINS</a> are present), the reaction is very rapid. Precipitates are formed, mainly protein-chrome, which add to sludge generation. If chrome discharges are excessive, the chromium might remain in the solution. Even in low concentrations, it has a toxic effect upon <a href="https://interviewquestions.tuteehub.com/tag/daphnia-434436" style="font-weight:bold;" target="_blank" title="Click to know more about DAPHNIA">DAPHNIA</a>, thus disrupting the food chain for fish life and possibly inhibiting photosynthesis.</p></body></html> | |
| 194. |
Activated Charcoal is used to remove colouring matter from pure substances by |
| Answer» <html><body><p> <a href="https://interviewquestions.tuteehub.com/tag/adsorption-14613" style="font-weight:bold;" target="_blank" title="Click to know more about ADSORPTION">ADSORPTION</a></p><br/><br/><p>Activated <a href="https://interviewquestions.tuteehub.com/tag/charcoal-914373" style="font-weight:bold;" target="_blank" title="Click to know more about CHARCOAL">CHARCOAL</a> is used to remove <a href="https://interviewquestions.tuteehub.com/tag/colouring-922471" style="font-weight:bold;" target="_blank" title="Click to know more about COLOURING">COLOURING</a> matter from pure substances. It works by adsorption. <a href="https://interviewquestions.tuteehub.com/tag/colour-422259" style="font-weight:bold;" target="_blank" title="Click to know more about COLOUR">COLOUR</a> impurities are adsorbed on the <a href="https://interviewquestions.tuteehub.com/tag/surface-1235573" style="font-weight:bold;" target="_blank" title="Click to know more about SURFACE">SURFACE</a> of activated charcoal.</p></body></html> | |
| 195. |
Non-stick kitchenwares are coated with |
| Answer» <html><body><p> Teflon</p><br/><br/><p>The modern non-stick <a href="https://interviewquestions.tuteehub.com/tag/pans-1146038" style="font-weight:bold;" target="_blank" title="Click to know more about PANS">PANS</a> were <a href="https://interviewquestions.tuteehub.com/tag/made-3718337" style="font-weight:bold;" target="_blank" title="Click to know more about MADE">MADE</a> using a coating of Teflon (polytetrafluoroethylene or PTFE). PTFE was invented serendipitously by <a href="https://interviewquestions.tuteehub.com/tag/roy-625830" style="font-weight:bold;" target="_blank" title="Click to know more about ROY">ROY</a> Plunkett in 1938, while working for a <a href="https://interviewquestions.tuteehub.com/tag/joint-1061928" style="font-weight:bold;" target="_blank" title="Click to know more about JOINT">JOINT</a> venture of the DuPont <a href="https://interviewquestions.tuteehub.com/tag/company-924982" style="font-weight:bold;" target="_blank" title="Click to know more about COMPANY">COMPANY</a>.</p></body></html> | |
| 196. |
The minimum energy required for an effective collision is |
| Answer» <html><body><p> Activation energy</p><br/><br/><p>The minimum <a href="https://interviewquestions.tuteehub.com/tag/amount-374803" style="font-weight:bold;" target="_blank" title="Click to know more about AMOUNT">AMOUNT</a> of energy that <a href="https://interviewquestions.tuteehub.com/tag/molecules-563030" style="font-weight:bold;" target="_blank" title="Click to know more about MOLECULES">MOLECULES</a> <a href="https://interviewquestions.tuteehub.com/tag/must-2185568" style="font-weight:bold;" target="_blank" title="Click to know more about MUST">MUST</a> have in order for a reaction to occur upon collision is called activation energy.</p></body></html> | |
| 197. |
What is the atomic number of mercury? |
| Answer» <html><body><p> <a href="https://interviewquestions.tuteehub.com/tag/80-337972" style="font-weight:bold;" target="_blank" title="Click to know more about 80">80</a></p><br/><br/><p>The <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/number-582134" style="font-weight:bold;" target="_blank" title="Click to know more about NUMBER">NUMBER</a> of <a href="https://interviewquestions.tuteehub.com/tag/mercury-558950" style="font-weight:bold;" target="_blank" title="Click to know more about MERCURY">MERCURY</a> is 80.</p></body></html> | |
| 198. |
Piped Natural Gas (PNG) is used for |
| Answer» <html><body><p> Cooking</p><br/><br/><p>LPG is Liquefied Petroleum Gas and PNG is Piped Natural Gas. LPG is supplied in <a href="https://interviewquestions.tuteehub.com/tag/liquid-1075124" style="font-weight:bold;" target="_blank" title="Click to know more about LIQUID">LIQUID</a> <a href="https://interviewquestions.tuteehub.com/tag/form-996208" style="font-weight:bold;" target="_blank" title="Click to know more about FORM">FORM</a> just as the <a href="https://interviewquestions.tuteehub.com/tag/name-573193" style="font-weight:bold;" target="_blank" title="Click to know more about NAME">NAME</a> suggests in cylinders whereas PNG is supplied through a <a href="https://interviewquestions.tuteehub.com/tag/pipeline-1154964" style="font-weight:bold;" target="_blank" title="Click to know more about PIPELINE">PIPELINE</a>. LPG 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 fuel in heating appliances and vehicles, where as PNG is used for cooking (gas stoves) and heating water (gas geysers).</p></body></html> | |
| 199. |
Cement is usually a mixture of : |
| Answer» <html><body><p> Calcium silicate and calcium aluminate</p><br/><br/><p>Portland cement is the most common type of cement in general use around the world because it is a basic <a href="https://interviewquestions.tuteehub.com/tag/ingredient-1044207" style="font-weight:bold;" target="_blank" title="Click to know more about INGREDIENT">INGREDIENT</a> of concrete, mortar, stucco and most nonspecialty grout. It usually originates from <a href="https://interviewquestions.tuteehub.com/tag/limestone-1074002" style="font-weight:bold;" target="_blank" title="Click to know more about LIMESTONE">LIMESTONE</a>. It is a fine powder produced by grinding Portland cement clinker (more than <a href="https://interviewquestions.tuteehub.com/tag/90-341351" style="font-weight:bold;" target="_blank" title="Click to know more about 90">90</a>%), a limited amount of calcium sulfate (which controls the set <a href="https://interviewquestions.tuteehub.com/tag/time-19467" style="font-weight:bold;" target="_blank" title="Click to know more about TIME">TIME</a>) and up to 5% minor constituents. Portland cement clinker is a hydraulic material which shall consist of at least two-thirds by mass of calcium silicates, the remainder consisting of aluminium- and iron-containing clinker <a href="https://interviewquestions.tuteehub.com/tag/phases-1152932" style="font-weight:bold;" target="_blank" title="Click to know more about PHASES">PHASES</a> and other compounds.</p></body></html> | |
| 200. |
Nitrogen forms a variety of compounds in all oxidation states ranging from |
| Answer» <html><body><p> 3 to +5</p><br/><br/><p>Nitrogen <a href="https://interviewquestions.tuteehub.com/tag/forms-11384" style="font-weight:bold;" target="_blank" title="Click to know more about FORMS">FORMS</a> a <a href="https://interviewquestions.tuteehub.com/tag/variety-1443303" style="font-weight:bold;" target="_blank" title="Click to know more about VARIETY">VARIETY</a> of <a href="https://interviewquestions.tuteehub.com/tag/compounds-927010" style="font-weight:bold;" target="_blank" title="Click to know more about COMPOUNDS">COMPOUNDS</a> in all oxidation <a href="https://interviewquestions.tuteehub.com/tag/states-1225920" style="font-weight:bold;" target="_blank" title="Click to know more about STATES">STATES</a> <a href="https://interviewquestions.tuteehub.com/tag/ranging-618794" style="font-weight:bold;" target="_blank" title="Click to know more about RANGING">RANGING</a> from –3 to +5.</p></body></html> | |