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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.
| 52901. |
Who discover microscope ? & when ? |
| Answer» Zacharias Janssen,in 1590 | |
| 52902. |
Who discover first living cell ? |
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Answer» Thanks Aton von leuwenhoek and discovered in a pond |
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| 52903. |
Who discover cell ? & when ? |
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Answer» Yes i know , beause i try to revise this with my friends. Robert hook in 1665 All these questions are related to class 9th bio |
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| 52904. |
How organism exists on earth ? |
| Answer» | |
| 52905. |
Why organisms exists on earth ? |
| Answer» | |
| 52906. |
What is human being ? |
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Answer» I am not asking the scientific name of human being and who give scientific name to human being ? Homo sapiens is the systematic name used for human being.it means \'wise man\' and it is introduced by Carlous Linnaeus in 1758. |
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| 52907. |
What is himan being ? |
| Answer» | |
| 52908. |
Which enzyme first act on food and where it takes place ? |
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Answer» But what is difference between Salivery amylase and ptyalin. Thanks Salivary amylase Ptyalin enzyme first act on food and it takes place from mouth. |
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| 52909. |
How many part of small intestine ? |
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Answer» Thanks There are 3 parts of small intestine:- 1.duodenum,2.jejunum, 3. Lieum 3parts |
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| 52910. |
Enlist any three adaptations of leaves for photosynthesis? |
| Answer» Presence of chlorophyll Availability of sunlight Presence of carbon dioxide | |
| 52911. |
What is the first go into the space |
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Answer» Yuri Gagarin Neil armstrong. Neil aramstrong first on moon Yuri Gagarin on 12 April 1961 Dog Neil aramstrong |
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| 52912. |
What is Stoichiometry? |
| Answer» | |
| 52913. |
Write the balance eqation zinc+silver nitrate-zinc nitrate +silver |
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Answer» Zn+AgNO3----->ZnNO3+Ag Zn+ AgNO3------>ZnNO3+Ag. Aashi,you have written chloride in reaction but Abhishek had asked nitrate Zn + 2Agcl-------->Zncl2 + 2Ag |
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| 52914. |
How do we express the direction of electric current |
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Answer» CONVENTIONALLY - conventionally the direction of current is from positive to negative terminal.SCIENTIFICALLY- scientifically the direction of electrons is from negative to positive terminal. Generally the direction of electric current means flow of electron in electric circuit is negative to positive but the conventional flow of current is positive to the negative in an electric circuit |
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| 52915. |
Explain digestion in human being by using well tabeled diagram |
| Answer» The digestive system is concerned with the breakdown of complex food substances and its conversion in to simpler components , its absorption through the blood stream and assimilation in the cells and tissues producing desired effects of growth etc.The digestive system in man comprises of different components each assigned with a specific function.Basically, the the digestive system can be considered as a the food pipe or esophagus initiating from the buccal cavity or mouth and terminating in the **** with diversifications at different stages of its progression form the mouth to ****. | |
| 52916. |
Why Gravitational force push toword the earth |
| Answer» | |
| 52917. |
What is the angle between incident ray and emergent Ray when a ray is passed through glass slab |
| Answer» Normal | |
| 52918. |
What is carnivores ? |
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Answer» Flesh eating animals like tiger Flesh eating animals are termed as carnivores. An animal feed on other animal |
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| 52919. |
Explain all the points of nutrition in animals. |
| Answer» 1 Ingestion2 Digestion 3 absorption 4 assimilation 5 egestion | |
| 52920. |
List of organic and inorganic compounds |
| Answer» | |
| 52921. |
What is 5 R |
| Answer» | |
| 52922. |
What happen to lime water when co2 gas is bubbled through it in excess |
| Answer» Lime water turns milky | |
| 52923. |
What is the function of mucus, lipase and ptylin |
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Answer» Function of mucus is to protect the stomach wall with Hcl.Lipase involves in the Digestion of lipids or fat Pepsine involved in the Digestion of protein in stomach Thanks❤ Mucus helps our stomach to be neutral because hcl makes acid so mucus control over it and stop it from making not neccesary more aci |
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| 52924. |
What happen chemically when quick lime is added to water |
| Answer» CaO+H2O------------> Ca(OH)2. When quick lime is added to water ot forms calcium hydroxide or slaked lime | |
| 52925. |
Write the balanced chemical equation with state symbols for the following reaction |
| Answer» word meanings of this chapter | |
| 52926. |
Identify the substance oxidized and reduced in the reaction |
| Answer» | |
| 52927. |
What are function of xylem and phloem |
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Answer» Xylem and Phloem are the conducting tissues of a plant. Both of them have following functions :Xylem - It helps in the transportation of water and minerals from root to different parts of plant. Phloem - It helps in the transportation of food from leaves to different part of plant. Shrh |
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| 52928. |
When length is doubled R becomes 4R.how? |
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Answer» Because length is directly propational to R so when we double the length the resistance Become 4. Because in that case R will be directly proporproportional to length\u200b\u200b2 |
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| 52929. |
What is polythene genesis? |
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| 52930. |
What is thunderstorm |
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Answer» .a transientstormof lightning andthunder, usually with rain and gusty winds, sometimes with hail or snow, produced by cumulonimbus clouds. A thunderstorm is a storm caused by lightning and Thunder they are caused by an object which occurs when most warm air Rises vertically into the atmosphere |
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| 52931. |
Give 2 points of difference between an electromagnet and a parmanent magnet |
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Answer» ELECTRO MAGNET--> 1. It is a type of temporary magnet.2. It shows its magnetic properties only when current is supplied to it.3. It\'s strength can be changed by increasing no. of turns , by taking pure iron ore or by supplying large amount of current. PERMANENT MAGNET--> 1. It can be of various types like bar magnet, horse shoe magnet.2. It shows it\'s magnetic property all time or for long time.3. It\'s strength can\'t be increased. The strength of electromagnet can changed while it is not in permanent magnet. The strength of electromagnet is strong as compared to permanent |
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| 52932. |
Differences between voluntary and involuntary actions |
| Answer» Involuntary action is just opposite to voluntary action | |
| 52933. |
What is glacial acetic acid? What is its melting point |
| Answer» Ch3cooh when it is not diluted then we say that it is acetic acid .In acetic acid amount of water is present in less amount and it is converted into solid below room temperature below 16.6 degree Celsius .Boiling point 118.1 degree celsius | |
| 52934. |
???tell me faraday law of constant .??? Can any one |
| Answer» | |
| 52935. |
What is vilie |
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Answer» Vilie are a small finger like projection present in the small intestine and the function of Villi is to absorb digested food to different body cell ? Vilie are small finger like projections present in small intestine |
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| 52936. |
Is chapter metals and nonmetals not in course |
| Answer» It is in course | |
| 52937. |
How can say plant are alive or not |
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Answer» Plants are alive because it perform all life process Plants release oxygen and intake carbon dioxide this is scientifically proven |
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| 52938. |
What is anahydrated and hemihydrated |
| Answer» Anhydrated means nil water of crystallization while hemihydrate means half water of crystallization | |
| 52939. |
Can amount of alveoli increase |
| Answer» Yes | |
| 52940. |
What happen when Lead nitrate is heated |
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Answer» 2Pb(NO3)2--------> 2PbO+4NO2+O2 When lead nitrate is heated , lead oxide ( yellow ppt.) , Nitrogen dioxide, oxygen is formed.Pb(NO3)2-----> PbO + NO2 + O2 |
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| 52941. |
Write a source of energy? |
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Answer» Air is also a source of energy. Air ,water, sun Water is a source of energy Sun is the ultimate source of energy |
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| 52942. |
What happens when co2 gas is bubuuled through lime water |
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Answer» An white precipitate of calcium carbonate (CaCO3) is formed.C02+Ca(OH)2--> CaCO3 H2O. Lime water turn milky |
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| 52943. |
How we overcome the limitations of chemical equation |
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| 52944. |
describe the structure and function of. carpel of a typical angiosperms . |
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| 52945. |
What is the function of bile ; pancreatic; intenstinal juice in digestion |
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Answer» Bile helps in emulsification of fat globules and also make food alkali for proper working of pancreatic juices............pancreatic juice helps in digestion of fat protiens and simple sugars(maltose)......... intestinal juice helps in complete digestion of remaining food and hence the food is completely digested Pancreaticjuice: It digest protein & fats and glycerol. |
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| 52946. |
Observe the colour of the crystal after heating |
| Answer» Crystals of what?????? | |
| 52947. |
Explain different ways to induced current in the coil ? |
| Answer» | |
| 52948. |
on what factor does acurrent carrying conductor placed inside a magnet depend |
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| 52949. |
Relate 1kWh and SI Unit of energy |
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Answer» Joule Joule |
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| 52950. |
Why vibgyor don\'t meet white at our eye focous? |
| Answer» | |