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InterviewSolution
This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.
| 201. |
What is prize of new samung galaxy Z Folder |
| Answer» It may be 500000 | |
| 202. |
Balance the following chemical equations a=HNO3 +Ca(OH)2=Ca(NO3)2+H2O |
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Answer» 2HNO3+Ca(OH)2=Ca (NO3)2+2H2O 2HNO3+Ca(OH)2=Ca (NO3)2+2H2O |
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| 203. |
Explain earth is treasure of elements |
| Answer» A rare-earth element (REE) or rare-earth metal (REM), as defined by the International Union of Pure and Applied Chemistry, is one of a set of seventeen chemical elements in the periodic table, specifically the fifteen lanthanides, as well as scandium and yttrium.\xa0Scandium and yttrium are considered rare-earth elements because they tend to occur in the same ore deposits as the lanthanides and exhibit similar chemical properties, but have different electronic and magnetic properties.\xa0Rarely, a broader definition that includes actinides may be used, since the actinides share some mineralogical, chemical, and physical (especially electron shell configuration) characteristics.The 17 rare-earth elements are cerium (Ce), dysprosium (Dy), erbium (Er), europium (Eu), gadolinium (Gd), holmium (Ho), lanthanum (La), lutetium (Lu), neodymium (Nd), praseodymium (Pr), promethium (Pm), samarium (Sm), scandium (Sc), terbium (Tb), thulium (Tm), ytterbium (Yb), and yttrium (Y). They are often found in minerals with thorium (Th), and less commonly uranium (U).Despite their name, rare-earth elements are – with the exception of the radioactive promethium – relatively plentiful in Earth\'s crust, with cerium being the 25th most abundant element at 68 parts per million, more abundant than copper. However, because of their geochemical properties, rare-earth elements are typically dispersed and not often found concentrated in rare-earth minerals; as a result economically exploitable ore deposits are less common. | |
| 204. |
Why do you think there should be audible distribution of resources? |
| Answer» Exclusive distribution means that your audiobook will only be available on Audible’s channels, which currently include Audible, Amazon and iTunes. You are not permitted to distribute or sell your audiobook in any other format on any site or store outside of Amazon, Audible, and iTunes. Audiobooks published distributed exclusively earn a 40% royalty.If you choose non-exclusive distribution, you are able to also sell and distribute your completed audiobook through other distributors, such as on CD or other physical formats wherever you choose. Non-exclusive projects may not be published as a Royalty Share project, and must be completed as a Pay-for-Production or uploaded directly to ACX. Audiobooks distributed non-exclusively through ACX earn a 25% royalty. | |
| 205. |
Does convex mirror form virtual object? |
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Answer» Yes Yes Plane\xa0mirrors\xa0and\xa0convex mirrors\xa0only\xa0produce virtual\xa0images.\xa0 Convex mirrors always forms a virtual and erect image. |
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| 206. |
Is biosynthetic phase and Calvin cycle the same |
| Answer» Yes they both are same. | |
| 207. |
Why it is said that kidneu help in the process of osmoregulation? Explain. |
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Answer» Kidneys regulate the osmotic pressure of a mammal\'s blood through extensive filtration and purification, in a process known as osmoregulation. Kidneys filter the blood; urine is the filtrate that eliminates waste from the body via the ureter into the bladder. Its kidney.........not kidneu typing mistake |
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| 208. |
Name two excretory product in plants other than oxgyen and carbon dioxide. |
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Answer» Vegetables , fruit and leaves Dried leaves* Leaves and fruits Resins and gum |
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| 209. |
An example of double displacement Reaction with Nitrogen |
| Answer» Double Displacement Reaction with nitrogen ? | |
| 210. |
The left kidney is placed a little higher than the right kidney?Give reason. |
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Answer» The right kidney is slightly lower than the left kidney due to the presence of large liver on the right side of the body. The liver is broader on the right side and it tapers gradually on the left side. The kidneys lie behind the peritoneum that lines the abdominal cavity. The left kidney\xa0is located slightly more superior\xa0than the right kidney\xa0due to the larger size of the liver on the\xa0right\xa0side of the body. Unlike the other abdominal organs, the\xa0kidneys\xa0lie behind the peritoneum that lines the abdominal cavity and are thus considered to be retroperitoneal organs. |
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| 211. |
Which nitrogenous waste product is most soluble in water? |
| Answer» Ammonia | |
| 212. |
What is redox reaction? Define with example. |
| Answer» The reactions in which oxidation and reduction reactions occur simultaneously are called redox reactions. Zn+Cu 2+ →Zn 2+ +Cu | |
| 213. |
What are the components of the gastric juice? What are their functions ?? |
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Answer» Thank you for answering. The components are inactive pepsinogen( which gets converted to active pepsin by HCL ) and mucus The components of gastric juice are:*HCL-it helps in digesting the complex food into simple form and helps the pepsin to work *MUCUS-it prevents the wall of stomach from the effect of hcl acid*PEPSIN-it converts protein molecules into a simplest form called peptons |
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| 214. |
Human respiratory system all information ? |
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Answer» 1. Nose:The nose possesses a couple of exterior nostrils, which are divided by a framework of cartilaginous structure termed as the septum.\xa02. Pharynx:The nasal chambers open up into a wide hollow space termed as the pharynx. It is a common path for both air and food.3 . Trachea:The trachea or the windpipe rises below the larynx and moves down to the neck.\xa04 . Bronchi:The trachea splits into two tubes termed as bronchi, which enter each lung individually. The bronchi divide into secondary, tertiary, and to bronchioles, which is again further divided into small air-sacs called the alveoli.5 . Lungs:\xa0Lungs are the chief centres of the respiration in humans and other vertebrates. They are located in the thoracic cavity of the chest near the backbone and on either side of the heart .Thank you. Respiratory System Parts and FunctionsLet us have a detailed look at the different parts of the respiratory system and their functions.Nose:The nose possesses a couple of exterior nostrils, which are divided by a framework of cartilaginous structure termed as the septum. This is the structure that evenly separates the right nostril from the left nostril. Tiny hair follicles that cover the interior lining of nostrils acts as the body’s first line of defence against foreign\xa0pathogens. Furthermore, they provide additional humidity for inhaled air.Larynx:Two cartilaginous chords lay the framework for the larynx. They are situated at the point of joining the pharynx and trachea. It is also termed as Adam’s apple or the voice box. It is the portion which rises and falls during swallowing of food particles. It generates sound as air passes through the hollow in the middle.Pharynx:The nasal chambers open up into a wide hollow space termed as the pharynx. It is a common path for both air and food. It functions by preventing the entry of food particles into the windpipe. The epiglottis is an elastic cartilage, which serves as a switch between the larynx and the oesophagus by allowing the passage of air into the airway to the lungs, and food in the\xa0gastrointestinal tract.Trachea:The trachea or the windpipe rises below the larynx and moves down to the neck. The walls of trachea comprise C-shaped cartilaginous rings which give hardness to the trachea and maintain it by completely expanding. The trachea extends further down into the breastbone and splits into two bronchi, one for each lung.Bronchi:The trachea splits into two tubes termed as bronchi, which enter each lung individually. The bronchi divide into secondary, tertiary, and to bronchioles, which is again further divided into small air-sacs called the alveoli. The alveoli are minute sacs of air with thin walls and single-celled manner. It enables the exchange of oxygen and carbon dioxide molecules into or away from the bloodstream.Lungs:\xa0Lungs are the chief centres of the respiration in humans and other vertebrates. They are located in the thoracic cavity of the chest near the backbone and on either side of the heart. They are the pair of large, spongy organs, mainly involved in the exchange of gases between the blood and the air. Compared to the left lung, the right lung is quite bigger and heavier.\xa0 |
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| 215. |
Why does lime water turn milky when C02 is passed into it |
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Answer» When CO2 is passed through lime water milky white precipitate is formed because of the formation of "CALCIUM CARBONATE" Clear, colorless limewater absorbs\xa0carbon dioxide\xa0readily from air, giving a milky solution. This is due to the insoluble suspension of\xa0calcium carbonate\xa0formed:Ca(OH)2(aq)\xa0+ CO2(g)\xa0→\xa0CaCO3(s)\xa0+ H2O(l)If excess CO2\xa0is added, the following reaction takes place:CaCO3(s)\xa0+ H2O(l)\xa0+ CO2(g)\xa0→ Ca(HCO3)2(aq) Due to the formation of calcium carbonate which is insoluble in water When carbon dioxide is passed through or over lime water it turns ? milky due to the calcium carbonate |
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| 216. |
Write a detailed account on coal and petroleum conservation |
| Answer» Coal and petroleum are formed as a result of degradation of ancient plant life which lived millions of years ago. These dead plant matter started to pile up, eventually forming a substance called peat. Over time, heat and pressure from geological processes transformed these materials into coal. Since these are formed from essentially fossils, they are also known as fossil fuels. | |
| 217. |
How do chemical react |
| Answer» The chemical react with there recant and product | |
| 218. |
What is bleaching powder? Give equation for its reaction with(1) HCl (2) CO2 (3)H2So4 |
| Answer» \xa0(a) Bleaching powder is Calcium oxychloride (CaOCl2\u200b). It is prepared by passing chlorine gas over dry slaked lime.\xa0Reaction:\xa0Ca(OH)2\u200b+Cl2\u200b→CaOCl2\u200b+H2\u200bO\xa0(b) When bleaching powder reacts with dilute sulphuric acid, it produces chlorine gas.\xa0Reaction:\xa0CaOCl2\u200b+H2\u200bSO4\u200b→CaSO4\u200b+Cl2\u200b(g)+H2\u200bO(l)\xa0(c) Two important uses of bleaching powder are-\xa0 (i) It is used for disinfecting the drinking water supply.\xa0 (ii) It is used in the manufacture of chloroform. | |
| 219. |
4.What is cinnabar? How is metal extracted from cinnabar? Explain briefly. |
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Answer» Love u baby Cinnabar also known as HgS is termed as the mercury ore.Mercury can be obtained from cinnabar by heating the cinnabar ore in a current of air and condensing the mercury vapour formed. Due to its relatively low boiling point mercury can be easily purified by vacuum distillation. The reaction of mercury sulphide with oxygen is shown below:HgS + O2 →\xa0Hg + SO2This process is also called Roasting. However Mercury can be obtained from other reactions too. For ex:HgS + Fe → Hg + FeS4HgS + 3 CaO → 4Hg + 3CaS + CaSO4 |
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| 220. |
If a current of 10 A flows for four minutes find the quality transferred |
| Answer» ∵\xa0Current\xa0is the rate of\xa0flow\xa0of charge . Hence, 2400 Coulombs charge is\xa0transferred when current of 10A flows for 4 min | |
| 221. |
Is oxidation endothermic or exothermic reaction? |
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Answer» Exothermic Exothermic 2H2(g) + O2\xa0(g)\xa0→\xa02H2O Most probably exothermic The reaction in which oxygen combines with other elements or compounds is known as an oxidation reaction. For example, burning of hydrogen is an oxidation process in which hydrogen combines with oxygen to form water.2H2(g) + O2 (g)\xa0→\xa02H2OOxidation reactions are exothermic. |
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| 222. |
What is the chemical properties of acid and base |
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Answer» Acid 1- Sour taste. 2- not slippery in touch3- turn blue litmus to red4- H+ions on the other handBase1-Bitter taste2-Feel slippery3-Turn red litmus to blue4- H-ions on the other hand See in ncert book of cl 10 and any refreser |
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| 223. |
What is a balanced chemicals equation? |
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Answer» In the balance equation reactant and product both having equal number of elements. A balanced chemical equation has equal number of atoms of different elements on both reactant as well as product side. It is one that contain equal no of atom of each element on both side of the reaction |
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| 224. |
Advantage if series circuit |
| Answer» Series Combination:Advantages:1. Series circuits do not overheat easily. This makes them very useful in the case of something that might be around a potentially flammable source, like dry plants or cloth.2. Series circuits are easy to learn and to make. Their simple design is easy to understand, and this means that it’s simple to conduct repairs .3. we can add more power devices, they have a higher output in terms of voltage .4. The current that flows in a series circuit has to flow through every component in the circuit. Therefore, all of the components in a series connection carry the same current. | |
| 225. |
What happens if egg is not fertilise |
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Answer» The lining of uterus break and come out through ****** as a blood and mucus this is non as gestation period and is done after every 28 days if the egg is not fertilized the uterine lining slowly break down and comes out through the ****** as blood and mucus. |
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| 226. |
What are neutralization reaction? Why are they named so? Give one example? |
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Answer» All the base react with acid to form salt and water for ex KOH+H2SO4~K2SO4+H2O All the base react with acid to form salt and water for ex KOH+H2SO4~K2SO4+H2O When acid and base react together to form salt and water is called neutralisation reaction. Tham runal The reaction between an acid and a base to form a salt and water is called a neutralisation reaction eg: Na+ HCl- NaCL + H2o (2) 2KOH + h2so4 -k2so4 + 2h2o in which acid and bases react with each other to neutralize each other and former salt + water one example of the following reaction is hydrochloric acid + sodium hydroxide and the products are nacl and water |
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| 227. |
Rohan took four solutions P, Q, R and S. The pH of solution P is 7, Q is 3, R is 5 and S is 11. |
| Answer» Oag | |
| 228. |
What are the uses of concave mirror |
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Answer» Uses of concave mirrors:\tConcave mirrors are commonly used in torches, searchlights and headlights of vehicles to get powerful parallel beams of light.\tThey are used as shaving mirrors to see a larger image of the face.\tDentists use concave mirrors to view large images of the teeth of the patients.\tLarge concave mirrors are used to concentrate sunlight in order to produce heat in the solar furnaces. Used in vehicle Used by dentistUsed in torches |
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| 229. |
What is vibgyor |
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Answer» Group of seven color which pass through glass solution Vibgyor is the sequence of seven colours that are visible in the rainbow The sequence of colours in a rainbow i.e, voilet, indigo, blue, green, yellow, orange, red. |
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| 230. |
Why mendel choose pea plant only . |
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Answer» Short life span and produce large no of seeds Mendel choose pea plant for studying inheritance because they are self pollinating and because many generations of pea plant can be produced in a comparatively short time span and their study is much simpler than that of animals. Mendel\'s choose pea plant because it has generations more than other plants or humans and it has characteristics. Just suppose, when he research on humans he only saw his two or three generations so he don\'t research on his work. Then he thought pea plant is correct . |
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| 231. |
Incorrect DNA copying can alter the reproduction process. List the effect of such a case |
| Answer» Incorrect DNA copying or DNA replication during cell division can severly affect the reproduction process. Hence DNA is responsible for every activity from dna copying to protein formation. If protein failed to fold due to mutation then several neurodegenrative disease can occur.\xa0Incorrect DNA copying\xa0can lead to variations.\xa0In\xa0this proteins formed are different from the parent and this\xa0results in\xa0the change\xa0in\xa0characters\xa0in\xa0the offspring. This is only due to these variations that evolution occurs. | |
| 232. |
What is an optically denser medium ?? |
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Answer» Out of two given mediums , the medium which has greater value of refractive index Ok thanks. Less light passed Ok thanks for answering. A medium has lesser speed of light is passing is known as optically denser medium |
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| 233. |
What is a ray of light ?? |
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Answer» Thank you for answering. After path of ,flow of can also be added The path of light in straight direction from a source of light Smallest unit of lights |
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| 234. |
How is a voltmeter connected in the circuit to measure potential difference between two points ?? |
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Answer» Thank you for answering my question. welldone Parallel To measure the potential difference between two points, a voltmeter should be connected in parallel to the points. In parallel In parallel |
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| 235. |
Name the reagent which is able to dissolve gold and platinum? |
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Answer» Thanks everyone...... for answering my questions.... Gold and platinum don\'t react with almost any chemical . And aqua regia is the chemical mixture 1 . Hydrochloric acid and 3 parts of nitric acid this mixture can be dissolve gold and platinum . Thank you Aqua Regis(formed by 3 parts of nitric acid and 1 HCL) Gold and Platinum belong to class of noble metals in the sense that gold and platinum do not react with almost any chemical reagent.Aqua Regia is the chemical mixture which consists of 3 parts of concentrated hydrochloric acid and 1 part of concentrated nitric acid and this mixture can dissolve gold and platinum. The reaction is as follows:Au + HNO3\xa0+ 4 HCl\xa0→\xa0HAuCl4\xa0+ NO + 2 H2O "regal water" or "king\'s water" is a mixture of nitric acid and hydrochloric acid, optimally in a molar ratio of 1:3. Aqua regia is a yellow-orange (sometimes red) fuming liquid, so\xa0named\xa0by alchemists because it can\xa0dissolve\xa0the noble metals,\xa0gold and platinum |
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| 236. |
Draw a neat labelled diagram of structural and functional unit of expcertion in human |
| Answer» The functional unit of the\xa0kidney\xa0responsible for excretion is the\xa0nephron\xa0. Each\xa0kidney\xa0contains about one million\xa0nephrons. The\xa0nephron\xa0has three primary regions that function in the renal excretion process: the\xa0glomerulus\xa0, proximal tubule, and the distal tubule.\xa0The kidneys remove urea and other wastes from the blood through tiny\xa0filtering units\xa0called nephrons. Nephrons (Figure below) are tiny, tube-shaped\xa0structures\xa0found inside each kidney. Each kidney has up to a million nephrons. Each nephron collects a small amount of fluid and waste from a small group of capillaries. | |
| 237. |
What is the definition of Electromagnet? |
| Answer» The temporary magnet produced by electricity is called an electromagnet.Uses -\tThey are used in telephones , telegraphs, electric motors, electric bells etc\tPowerful electromagnets are used in cranes\tBullet trains use the principle of electromagnetism\tThe most important use of electromagnets is in electric motors | |
| 238. |
Explain joule \'s law of heating |
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Answer» Joules law of heating states that heat is equal to product ofI²×t×R Joule\'s law of heating states,that when current passes through a conductor of resistance for a time then the heat which is developed in the conductor is same or equal to the product of the square of the current, resistance and time. |
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| 239. |
Is regeneration is also a reproduction method? Why |
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Answer» Regeneration is a type of asexual reproduction method. But it is not a true reproduction. In reproduction organisms give birth to young ones but in regeneration the cutted part of a body is regenerated. Yeah it is asexual reproduction which take place in planaria tale of lizard Regeneration\xa0is a\xa0type\xa0of asexual\xa0reproduction\xa0in which the organism is capable of regrowing certain body parts.\xa0Regeneration\xa0occurs via mitosis. Lizards can\xa0regenerate\xa0their tails, star fish can\xa0regenerate\xa0their arms while humans have the ability to\xa0regenerate\xa0their liver to a certain extent.\xa0Regeneration\xa0is\xa0considered\xa0as a\xa0method of reproduction\xa0because it is the ability of an organism to give rise new individual organism from their body parts. |
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| 240. |
How does magnesium metel is harmful for us |
| Answer» Magnesium is a mineral that’s found naturally in many foods and in your body. However, as with most things, there are dangers associated with getting too much.A magnesium overdose can lead to what is technically known as hypermagnesemia. This is when there’s too much magnesium in your blood. It can occur in people with chronic health conditions, such as chronic kidney disease, although it’s rare. | |
| 241. |
Hiiiiiii everyone |
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Answer» hello Hyy hello? Hi Hai |
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| 242. |
What is double solar energy |
| Answer» Solar power\xa0systems with\xa0double-sided (bifacial)\xa0solar panels\xa0-- which collect sunlight from two sides instead of one -- and single-axis tracking technology that tilts the\xa0panels\xa0so they can follow the sun are the most cost effective to date, researchers report.Advantages of Solar Energy\tRenewable Energy Source. Among all the benefits of solar panels, the most important thing is that solar energy is a truly\xa0renewable energy source. ...\tReduces Electricity Bills. ...\tDiverse Applications. ...\tLow Maintenance\xa0Costs. ...\tTechnology Development. ...\tCost. ...\tWeather Dependent. ...\tSolar Energy Storage Is Expensive. | |
| 243. |
Which type of magnetic field does a current carrying coin has? |
| Answer» A\xa0coil\xa0of\xa0current-carrying\xa0wire is otherwise known as a solenoid; it is often referred to as an electromagnet. ... The right diagram shows a cross-section of the same\xa0coil. The black circles represent where the\xa0current\xa0is flowing out of the\xa0coil\xa0and the black represent where it flows into the\xa0coils. The\xa0magnetic field around a current carrying coil\xa0is produced due to the\xa0current\xa0flowing through it. It is uniform throughout. It is just like the\xa0magnetic field\xa0of a bar\xa0magnet. If needles of a\xa0magnetic\xa0compass are arranged\xa0around\xa0the\xa0coil, they will arrange themselves in North to South direction. | |
| 244. |
Chemosynthesis |
| Answer» It refers to the synthesis of organic compounds by bacteria or other living organisms using energy derived from reactions involving inorganic chemicals (such as carbon dioxide and water), typically in the absence of sunlight. It is limited to certain bacteria and fungi. | |
| 245. |
Cheap and affordable credit is crucial for the country\'s development. Give Six reasons. |
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Answer» Thanks for the answer... Cheap and affordable credit is crucial for the country\'s development due to the following factors:\xa0\tMore lending would lead to higher incomes and encourage people to invest in agriculture, engage in business and set up small scale industries.\xa0\tCheap credit means more income would be left with the borrower to reinvest rather than return as interest. This leads to acceleration of economic activity.\tCheap\xa0credit would also allow weaker sections of society to enter formal sector of lending and rid them of exploitation at the hands of informal moneylenders. Thus, it may improve the economic condition of the poor and landless. |
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| 246. |
Which blood vessel brings deoxygentated blood to the heart |
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Answer» Vens Veins Answer is Veins.. Veins Generally veins are engaged in collecting the deoxygenated blood. But vena cava is the vessel mainly engaged in bringing deoxygenated blood to heart from different parts of body |
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| 247. |
Name a plants in which stometa are usually absent |
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Answer» Yeast Yeast The right answer is Hydrilla.. U can search on google Stomata are usally absent in hydrilla. It is a submerged plant that grows under water.its narrow leaves have no stomata at all.they breathe through their body surface. |
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| 248. |
Give an example of chemical reaction in which heat is absorbed due to which temperature falls |
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Answer» Nacl---na+cl2 endothermic reactions like any thermal decomposition reactionCaCO3 → CaO + CO2. |
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| 249. |
photo synthisies |
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Answer» Aal the green plants make their own food with the help of chlorophyll in the presence of sunlight and walter This is the process were the plants make their own food This process which produces their food from simple inorganic material . In the presence of sunlight They are the process of where the plant make there food own itself presence of sunlight ??????????? A process by which plants prepare there own food with the help of carbondioxide, sunlight, oxygen and water................. .. 6CO²+ 12H²O ==== carbohydrate + water + energy ( ATP) |
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| 250. |
Is there any difference between resistance and resistivity? If yes, tell the difference. |
| Answer» No.\xa0Resistance\xa0is the physical property\xa0of a\xa0substance because\xa0of\xa0which\xa0it\xa0opposes the flow\xa0of\xa0current i.e. electrons.\xa0Resistivity\xa0is the physical property\xa0of a\xa0particular substance which is having particular dimensions.\tSl. No.Differentiating PropertyResistanceResistivity1DefinitionResistance is the physical property of a substance because of which it opposes the flow of current i.e. electrons.Resistivity is the physical property of a particular substance which is having particular dimensions.2ProportionalityResistance is directly proportional to the length and temperature while it is inversely proportional to the cross-sectional area of the material.Resistivity is only proportional to the nature and temperature of the particular material.3SymbolRρ4FormulaR = V/I or, R = ρ(L/A)V = Voltage, I = Current, ρ = Resistivityρ = (R×A)/L R = Resistance, L= Length, A = Cross-sectional area5SI UnitsThe SI unit of resistance is OhmsThe SI unit of resistivity is Ohms-meter.\t | |