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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.
| 61301. |
Where the lenticlse founder in plants |
| Answer» On the trees, who have hard and woody stem | |
| 61302. |
Why the test charge is taken as positive charge? |
| Answer» Because the electricity was discovered in 1600 century and electron in 1897 ....so before discovery if electrons current was taken as the flow of only positive charge that is folkiwed till today but it is just for sake of convenience | |
| 61303. |
How to balance CO2+H2O ----> C6H12O6+O2+H2O |
| Answer» 6Co2+12H2o——>C6H12O6+6o2+6H2O | |
| 61304. |
What happens when a compound react with a compound |
| Answer» Two compounds react with each other to form a new compound. Example, calcium oxide (quick lime) reacts with carbon dioxide gas to form calcium carbonate (lime stone).CaO(s) + CO2 (g) → CaCO3(s) | |
| 61305. |
Why resistance oppose the flow of electricity ? |
| Answer» Because resistance is the property of a conductor to oppose the flow of charge through it | |
| 61306. |
Differentiate between potential energy and potential difference |
| Answer» Potential energy is the energy stored in an object due to its position.And the potential difference is the work in moving a charge from one point to another in an electric field.So, potential difference=work done/charge V=w/q | |
| 61307. |
How is corrosion is different from rusting? |
| Answer» Corrosion means oxidation of daily used articles while rusting is particular to the oxidation of iron. | |
| 61308. |
Diffrence between acid and base ? |
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Answer» Thanqu so much both yogita & tejas Acid is sour in taste and base is bitter in taste \tAcidBaseArrhenius Definition: An acid is any chemical compound which when dissolved in water gives a solution with a hydrogen ion activity greater than in pure water. Bronstead Lowry Definition: An acid is an substance which donates a proton.Arrhenius Definition: A base is an aqueous substance that can accept hydrogen ions. Bronstead Lowry Definition: A base is any substance which accepts a proton.pH Less than 7.0.pH Greater than 7.0 and could go up to 14 in case of stronger bases.Physical characteristics depending on the temperature, acids can occur in solid, liquid or gaseous form. Taste sour.Bases feel slippery because of the reaction of the base with the oils of your hand. Frequently solids except ammonia which is a gas. Taste bitter.Ex. Acetic acid i.e.CH3COOH and Sulfuric acidEx. Sodium Hydroxide (NaOH) and Ammonia (NH3)\t |
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| 61309. |
Why does cord of electric heater not glow while heating element does??????? ? |
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Answer» The\xa0heating element\xa0of the\xa0heater\xa0is made up of alloy which has very high resistance so when current flows through the\xa0heating element, it becomes too hot and\xa0glows. But the resistance of\xa0cord\xa0which is usually of copper or aluminium is very law so it\xa0does not glow. Please explain it?? |
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| 61310. |
How chemical reactions compound |
| Answer» When two or more subatance reaction each other and form new substance which different from parent substance. | |
| 61311. |
What are salts? |
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Answer» Salts are neutral formed when acid reacts with base Salts is acid Salts are the substances formed when an acid react with a base Salt is an acid |
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| 61312. |
What is excreation, and *** |
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Answer» Removal of waste material through specific organ like urea wateris known as excreation The removal of waste products from the body is known as excretion The process of removing out th waste material from the body is called excreation. |
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| 61313. |
FeSO4➡Fe2O3+SO2+SO3 why |
| Answer» due to the law of consevation of mass | |
| 61314. |
How we can balance this equation:- Al 2 (SO 4) 3 +NaOH =Al (OH) 3 +Na 2 SO 4 |
| Answer» Al 2(SO4)3+ 6NaOH------ 2Al(OH)3 + 3 Na2 SO4.. | |
| 61315. |
Define Vein,Blood capillaries, Pulmonary vei ,Pulmonary artery |
| Answer» 1.Pulmonary Vein :-> It carries oxygenated blood to the lungs.2.Pulmonary artery:-> It carries deoxygenated blood to the lungs. | |
| 61316. |
When the dil Hcl is added to Fe what reaction takes place |
| Answer» Fe + HCl ------ FeCl2+ H2 | |
| 61317. |
Why chlorophyll is essential for photosynthetic? |
| Answer» Chlorophyll is the pigment in chloroplasts that absorbs light energy. They then change this into chemical energy which enables the plant to fix carbon dioxide and then synthesise food substances. | |
| 61318. |
In which form of light energy found |
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Answer» In two forms1 wave form2 particle form Energy |
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| 61319. |
Odour of SO2 |
| Answer» The chemical formula of this compound is SO2. It exists in small concentrations in the earth’s atmosphere but it is the third most significant gas in the atmosphere of Venus. It is found in case of volcanic eruptions and in the effluents released from industries. It is a colourless gas with a rotten egg odour. It is highly soluble in water. It liquefies easily. | |
| 61320. |
Explain the mechanism of opening and closing of the stomata |
| Answer» Mechanism of opening and closing of stomata:Opening of stomata: Solutes from neighbouring epidermal and mesophyll cells enter the guard cells lowering its osmotic potential and water potential. This lowered water potential and osmotic potential will allow movement of water into guard cells from neighbouring cells. Guard cells become turgid due to water accumulation in them which results in the opening of the guard cells.Closing of stomata: As the stomata open the solute concentration is reduced. This makes the water from the guard cells to move away into neighbouring cells. Now, guard cells become flaccid with no water. They collapse against each other and result in the closing of stomata. | |
| 61321. |
Solar cooker is covered with glass plate why? |
| Answer» When sunlight falls over the solar cooker top, the sun rays pass through the glass sheet cover and get absorbed inside the cooker box. This glass sheet covers does not allow the solar energy to flow out in the form of radiant heat. Thus it traps more and more heat rays of the sun thereby producing green house effect.That is why glass lid is used in the solar cooker. | |
| 61322. |
What is reprodaction |
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Answer» Reproduction is a process by which organism produce an organism of it\'s own kind. *reproduction |
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| 61323. |
Define ionic theory of acid and base |
| Answer» When acid dissolves in water it gives H+ ion. (HYDROGEN Ion).. when base dissolves in water it gives -OH ion ..(HYDRO OXIDE. .) | |
| 61324. |
Explain the process of digestion in human beings |
| Answer» Digestion of food occurs in following ways in:(i) Mouth (Buccal cavity) The mouth contains teeth, which crushes the food into small particles. Salivary glands present in the mouth secretes saliva which moistens the food.(ii) Stomach Gastric glands are present in the wall of the stomach which releases the following secretions:(a) Hydrochloric acid To make the medium acidic for the action of enzyme pepsin.(b) Mucus To protect the inner lining of the stomach from the action of acid.(c)Pepsin A protein digesting enzyme.(iii) Small intestine It is the site of complete digestion of carbohydrates, proteins and fats.It receives secretions from liver and pancreas.(a) Bile juice It is secreted by liver and performs the following functions :It makes the medium alkaline for the pancreatic enzymes to act and also breaks down large fat globules into smaller globules.(b) Pancreatic juice It is secreted by pancreas. Contains enzymes like amylase for digesting starch, trypsin for digesting proteins and lipase for breaking down emulsified fats.(c) Intestinal juice It is secreted by the walls of small intestine. Contains a number of enzymes such as maltase, lipase etc., for complete digestion. | |
| 61325. |
Proof v equals r omega |
| Answer» | |
| 61326. |
Give two examples of amphoteric oxides |
| Answer» Two examples of amphoteric oxides are aluminium oxide and zinc oxide. | |
| 61327. |
Which common property do all elements present in same period and in same group? |
| Answer» Elements in the same group in the periodic table have similar chemical properties. This is because their atoms have the same number of electrons in the highest occupied energy level. Group 1 elements are reactive metals called the alkali metals. Group 0 elements are unreactive non-metals called the noble gases. | |
| 61328. |
What is the role of pseudopodia in ameoba during ingestion |
| Answer» It helps to trap the food in mouth. | |
| 61329. |
What we will say if an object is in circular motion ...speed or velocity |
| Answer» Velocity | |
| 61330. |
Is the molecule of na2co3.10h2o is wet? |
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Answer» Actually it is moist in the inside but not WET on the outside yes it is, in the rainy season it consume h20 and become hydrated |
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| 61331. |
What function is service by the following1.gastric sphincter 2. **** sphincter |
| Answer» (a) The release of food from the stomach to small intestine is controlled by gastric sphincter. Gastric sphincter releases food from the stomach to the small intestine while **** sphincter release the undigested food from the rectum to the ****\xa0(b) The release of undigested food from rectum through the **** is controlled by **** sphincter. | |
| 61332. |
What function is the following:1.Gastric sphincter 2. **** sphincter |
| Answer» (a) The release of food from the stomach to small intestine is controlled by gastric sphincter. Gastric sphincter releases food from the stomach to the small intestine while **** sphincter release the undigested food from the rectum to the ****\xa0(b) The release of undigested food from rectum through the **** is controlled by **** sphincter. | |
| 61333. |
brief difference between light reaction and dark reaction of photosynthesis |
| Answer» 1. Light reaction _ It occurs in the presence of sunlight.it is photo dependent reaction.during this the products formed are O2 and H2 . 2. Dark reaction _ It occurs in the absence of sunlight.it is a bio chemical reaction . during this the products formed are C6H12O6 and CO2 | |
| 61334. |
Differentiate between xylem element and phloem element |
| Answer» 1. xylem is a water connective tissue2.its induction is unidirectional 3. it is present in roots of plant4. its sales are xylem vessels, tracheid, xylem parenchyma, xylem sclerenchyma5. except parenchyma cell all are dead6. parenchyma cell is known as packaging tissue7. nucleus and cytoplasm is absent in xylemphloem1. it is present in shoot apex of plants 2 .its carries product of photosynthesis from leaves to other part of the plants3. it conduction is bidirectional4. its cells are seive tubes , companion cells ,phloem parenchyma, phloem sclerenchyma 5 . except sclerenchyma cell all are living 6. nucleus and cytoplasm is present in phloem. | |
| 61335. |
heating effect of electric current |
| Answer» when the current is start to flow the filament of bulb gets heated due to the flow of current this shows the heating effect of current. It is also known as joules law of heating. | |
| 61336. |
what is fuse ? state its applications |
| Answer» A fuse is a short length of a thin tin plated copper wire having a low melting point | |
| 61337. |
What happens when copper is burnt in air ? Give the equation. What type of reasons is it ? |
| Answer» Cu + O2 = CuO.......it is combination reaction | |
| 61338. |
Difference between dc and ac |
| Answer» Dc -Direct current & Ac- Alternate current. | |
| 61339. |
What is the speed of light in glass acuurate value |
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Answer» 2 1.52 |
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| 61340. |
What is laws of resistance ?? |
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Answer» Thanx prity The property of Substanc by it oppos the flow of charge. Series |
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| 61341. |
Who is the first prime minister of russia |
| Answer» Medvedev | |
| 61342. |
What is angle of aparture in convex lens? |
| Answer» 90 | |
| 61343. |
Is there any difference in the 9th and 10th syllabus from previous year? |
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Answer» Thank you… In 9th there is but in 10th no change Yes |
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| 61344. |
Kisi ke school me PA 1 ho gaya hai toh plz science ka kuch daaattooo |
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Answer» Pa toh nahi hua hai bt unit test hua haiBio nd chem from NCERT aur phy apne man se teacher ne diya Pa1 kya hai ?? |
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| 61345. |
How can we find the equivalent resistance of a circuit if there are "two resistors " in parallel? |
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Answer» Total resistance =1/R1+1/R2 and soon. 1/req=1/r(resistor1)+1/r(resistor2) |
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| 61346. |
How to prosses of rancidity |
| Answer» Rancidity is oxidation of the fat and oil particles present in the food it can be prevented by using antioxidants like bht | |
| 61347. |
what percent required in class 10th for science stream in kendriya vidyalaya no. 1 arakkonam |
| Answer» 98% | |
| 61348. |
Process of nutrition in amoeba |
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Answer» Phagocytosis Holozoic mode of nutrition. Nutrition in amoemba is a process called as endocytosis and the processes by which it engulfs the food is psedopodia |
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| 61349. |
Example of a combination reaction which is not redox |
| Answer» C+O2_CO2 | |
| 61350. |
Process of nutrition in amoeba is known as - |
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Answer» Phagocytosis This is called phagocytosis as amoeba is a unicellular and the intake of solid particles by a unicellular organism is called. Phagocytosis Holozoic mode of nutrition. It is holozoic nutrition Forming pseudo podiatrist. |
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