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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.
| 53201. |
What is fuse? And why it is an important component of all domestic circuit ? |
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Answer» Thanks yarr Fuse is an eltrical devices which is used i domestic circuit to prevent from short crcite and overloading |
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| 53202. |
What is meant by the term galvanisation? |
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Answer» It is the process of depositing a thin layer of zinc metal on iron objects to prevent it from rusting. It is the process of depositing It is a method of protecting steel and iron from rusting by coating them with a thin layer of zinc |
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| 53203. |
Define concetrate&dillute |
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Answer» Thank you helping me.kis school me padhti ho send me iske liye book ki kya jarrot he its very easy dilute acid is that in which acid concentration is very low and concentrate is vice versa Kis book me hai please book ka name likh dijiye In which book Answer Is on page 24 last paragraph |
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| 53204. |
How did the organism obtain food |
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Answer» From our mouth???? Food. It is obtained readymade from outside. An organism obtain its food from its surroundings |
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| 53205. |
What is molecular movement? |
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Answer» Zig zag movement of molecular particles All molecules are in constant motion. Heat, temperature and the motion of molecules are all related.Molecular movement is simply the movement in molecules in different states of matter |
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| 53206. |
What is pancreatic acini? Anyone tell answer. |
| Answer» The pancreatic acinar cell is the functional unit of the exocrine pancreas. It synthesizes, stores, and secretes digestive enzymes. | |
| 53207. |
What is combination reaction,displacement reaction,double displacement reaction |
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Answer» Combination reaction is the reaction in which two or more reactant combined to form a new product is known as combination reaction Displacement reaction is the reaction in which a more reactive metal displace a less reactive metal from it\'s aqueous solution is know as displacements reaction Double displacement reaction is the reaction in which two or more ionic compounds interchange their ions from it\'s position is know as doble displacement reaction Combination reaction - achemical reaction in which two or more reactants combined together to give single product. Combination reaction - those types of reaction in two or more compoind or elements make a single compound is called combination reactionAnd displacement -more reactive elements displaced the less reactive elements is called displacement reactionAnd double displacement- two or more ions exchange mutually is know as double displacement reaction |
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| 53208. |
How will u prepare washing soda from baking soda ?write its equation |
| Answer» The reaction is as follows. NaCl+H2O+CO2+NH3_NaHCO3+NH4CL. This NaHCO3 is heated and it gives Na2CO3 +CO2+H2O.when we add H2O to Na2CO3 then it becomes Na2CO3.10H2O | |
| 53209. |
Do acids have hydroxide ions?Explain |
| Answer» No acids have no hydroxide ion it release only hydronium ion. | |
| 53210. |
Why acid solutions are good conductors of electricity |
| Answer» Because it contains hydronium ion which is a metal so it conduct electricity. | |
| 53211. |
What is nature of soaps |
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Answer» Basic nature Basic |
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| 53212. |
An object is placed before a convex lens .the image formed |
| Answer» Both real and virtual depending on where the object is kept | |
| 53213. |
How to study plzz help......how to clear all topics easily..??? |
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Answer» First of all concentrated in self study then your results become best. Dekha na isss baar 4 toppers ko500 mai 499 aya toh hum ai v aisa hi karna hogaa Concentration is more important Refer as many books as you can. You can refer the Mordern abc phy chem bio books.It will clear all your doubts and you\'ll get some extra knowledge |
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| 53214. |
Why apple color gets brown while putting it in air |
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Answer» Apple contains iron in it and when apple comes in contact with air then it gets brown colour due to rancidity Due to rancidity |
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| 53215. |
What is largest artery in human |
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Answer» Aorta Aorta is the largest artery. |
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| 53216. |
Write a reaction in which insoluble salts are formed |
| Answer» Na2SO4(aq)+BaCl2(aq)- >BaSO4(s)+2NaCl(aq)The white precipitate(insoluble salt) BaSO4 is formed | |
| 53217. |
How does intestinal juice contributes in the digestion of proteins |
| Answer» In Intestinal juice an erepsin enzyme is present which converts dipeptide into amino acid.i.e Dipeptide -----------> amino amino acid ( erepsin) | |
| 53218. |
How I solutions for bonding |
| Answer» | |
| 53219. |
Cu+moist air give. Tarnish copper vessel |
| Answer» | |
| 53220. |
What happens when silver chloride is kept in the sunlight |
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Answer» Due to sunlight it breaks into silver and chlorine and it\'s colour also get changed from white into silver. It is used black and white photography?? sunlight is the source of energy so Ag will separate from Na Silver chloride turns grey in sunlight to form silver metal. |
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| 53221. |
Name decomposition reaction which takes place in presence of sunlight |
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Answer» Reaction b/w silver and bromine i.e silver bromide Reaction between silver chloride and sunlight |
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| 53222. |
Why is nitrogen flushed in packet food stuff |
| Answer» to prevent it from rancidity | |
| 53223. |
How is voltmeter connected in the circuit to measure potential diffrence between two points |
| Answer» A voltmeter is always connected in parallel to measure the potential difference between two points. | |
| 53224. |
Name products and by products of photosynthesis Plz tell it\'s urgent |
| Answer» Carbon dioxide reacts with water in presence of sunlight to make a sugar called glucose. The glucose is used in respiration or converted into starch and stored. Oxygen in produced as a byproduct. | |
| 53225. |
Explain reproductive part of male female |
| Answer» Reproductive parts of female are ****** ,ovum ,uterus | |
| 53226. |
Explain fragmentation and regeneration |
| Answer» | |
| 53227. |
Where does the blood absorb oxygen in the human body? |
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Answer» Carbon dioxide that is dissolved in the blood comes out of the capillaries back into the air sacs, ready to be breathed out. At the same time blood with fresh oxygen is carried from your lungs to the left side of your heart, which pumps blood around your body through the arteries. Blood absorbs oxygen in the alveoli In lungs |
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| 53228. |
Number of alvioli in our lungs |
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Answer» The mean alveolar number are about 480 million Millions of alveoli present in the lungs About 150 alveoli are there in our lungs. |
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| 53229. |
List of valency |
| Answer» Hydrogen 1Helium 0Lithiyum 1Beriliyum 2Boron 3Carbon 4Nitrogen 3Oxygen 2Florine 1Neon 0Sodium 1Magnesium 2Alluminium 3Sulphur 4Phosphorus 3Silicon 2Chlorine 1Argon 0 Potassium 1Calcium 2 | |
| 53230. |
To rechecking copies for all the subjects |
| Answer» | |
| 53231. |
How to understand concept of AC in physics |
| Answer» by capturing one end of wire in your hand and other wire in the plugged on switch | |
| 53232. |
How to apply for rechecking? |
| Answer» Maybe cbse doesn\'t allow rechecking | |
| 53233. |
What do you mean by reflection ,refraction and absorption of light |
| Answer» Reflection is the bouncing back of light when it falls on a shiny, smooth or polished surface..,........refractin os the phenomenon of bending of light rays when it travels from one medium to another which occurs due to optical density of mediums....,......Absorption of light takes place when matter captures electromagnetic radiation, converting the energy of photons to internal energy. Energy is transferred from the radiation to the absorbing species. ... The amount of energy carried by a light photon depends on its wavelength. | |
| 53234. |
How many nerve arise from our brain and spinal code ? |
| Answer» Please anyone answer this question | |
| 53235. |
What is meninge ? What it\'s contents ? |
| Answer» Please anyone answer this question | |
| 53236. |
How many teeths in a lion\'s mouth? |
| Answer» An Adult lion have 30 teeth. | |
| 53237. |
What do you mean by the end of charge in something,just like mobiles? |
| Answer» End of charge in something means that there is no more energy left on the product.And as you know that energy can be changed to any form of energy.For ex.in battery chemical energy is converted into electrical energy but when all the materials in the battery get used up it is said to be the end of the charge of the battery. | |
| 53238. |
Explain the digestion of chapati in human being |
| Answer» First chapati is being put in mouth by hand. In mouth chapati is chewed into Small piece by theeth then it is mixed with saliva and digestion of starch start in mouth .then it goes to our stomach by oesaphagus(wind pipe) in stomach HCL is present which clear germs from chapati .In liver bile juice digest fat present in chapati . Then it is goes to small intestine where villi are present whichabsorb using materials and then remaning waste product goes to large intestine and it remove from the and when signal comes. | |
| 53239. |
What happens when copper is burnt in air ? Give the equation . What type of reaction is it ? |
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Answer» It is both combination and oxidation as well as exothermic reaction A black compound is formed known as copper oxide. 2Cu + O2 - 2CuOIt is a combination reaction. Cooler does not burn |
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| 53240. |
how to balance chemical equation? |
| Answer» By equating no of atoms of elements both side reactants and products | |
| 53241. |
Proof that chlorophyll is necessary for photosynthesis explain. |
| Answer» chlorophyll absorb the sunlight in the from of photon and this is help in breaking down of H2o in H2 and o2 | |
| 53242. |
Process of absorbtion |
| Answer» It,s a process in which digested food get absorbed by our body cell | |
| 53243. |
Give the relationship between potential difference & current passing through the conductor? |
| Answer» Rgj | |
| 53244. |
How to recheck cbse board copy class 10th |
| Answer» | |
| 53245. |
do all cells use oxygen to produce energy? |
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Answer» Where in human or animals and plants yes |
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| 53246. |
why do fireglips glow at night |
| Answer» . | |
| 53247. |
Why acidic texture is good for hair shortanswer |
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| 53248. |
What is the ph of lime water |
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Answer» It is less than 7 Less than 7 Less than 7 |
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| 53249. |
Why human body is a good conductor |
| Answer» human body is made by five metals and having some amiunt of pure water | |
| 53250. |
Which type of reaction is catalysis |
| Answer» catalytic reactions are typical chemical reactions; i.e. the reaction rate depends on the frequency of contact of the reactants in the rate-determining step | |