InterviewSolution
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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.
| 3001. |
Who has written the book \'Descent of man\'? |
| Answer» | |
| 3002. |
It is enough for board exam to learn only Ncert Book exercise question |
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Answer» Referesher se bhi padh bhai I m with u No but you should learn questions from NCERT book that made by you and made extra questions from NCERT book |
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| 3003. |
what is the importance of ph explain by three example?\xa0 |
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Answer» If ph value is less than 7 then it is acidic and if ph value is greater than 7 then it is base and 7 is neutral To check it is from acid family or basic family |
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| 3004. |
What is mutation??? |
| Answer» Mutation is the permanent alteration of the nucleotide sequence of the genome of an organism, virus, or extrachromosomal DNA or other genetic elements. Mutations result from errors during DNA replication or other types of damage to DNA. | |
| 3005. |
Who coined the term gene? |
| Answer» | |
| 3006. |
practical based questions and its answers |
| Answer» See all in one guide for science | |
| 3007. |
What is ion |
| Answer» | |
| 3008. |
What is concave mirror |
| Answer» It is use in vehicles head light, dentist use to see large | |
| 3009. |
How rainbow is formed? |
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Answer» Dispersion, refraction and total internal reflection of light through the water drops which act as a prism Atmospheric refraction It is caused by dispersion of sunlight by tiny h2o droplets, present in the atmosphere.. They refract and disperse the incident sunlight ☀ then reflect it internally ND finally refract it again . Due to the dispersion of sunlight by water droplets present in the atmosphere Rainbow is formed by dispersion of white light |
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| 3010. |
What is the IUPAC name for Benzene (C6H6)? |
| Answer» The name of benzene is cyclohexane | |
| 3011. |
How sun see white in qfternoon |
| Answer» As it is on the top it is very near to us so white light spread equally and it seems white | |
| 3012. |
What is lateral displacement? |
| Answer» It is the perpendicular displacement between the incident ray and the emergent Ray | |
| 3013. |
Why common salt is added when the soap is preparing |
| Answer» Common salt is added to precipitate the soap formed when sodium hydroxide is added to fatty acid when heated | |
| 3014. |
What is rarer medium |
| Answer» That medium in which light travel more speed then another medium as compared to another medium is called rarer medium | |
| 3015. |
Wat do mean by light of refractio |
| Answer» | |
| 3016. |
What is the importance of ph in tooth decay |
| Answer» As the pH value decreases the acidity increase.... Therefore leading to tooth decayHope it helps u☺ | |
| 3017. |
Why star twinkle but planet do not |
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Answer» It\'s due to the atmospheric distubences... Because stars are too far from us and starlight travel through the atmosphere which causes refraction. Star has their own light but planet don\'t have their own light |
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| 3018. |
Name the bacteria which pollute the water |
| Answer» Coliform....?? | |
| 3019. |
Who is father of genitic |
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Answer» George Jhonn Mendal Rahul when you know the answer so why had you asked this question?? Mendal Gregor Mendel |
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| 3020. |
Justify that solar energy and nuclear energy are the two faces of the same coin. |
| Answer» | |
| 3021. |
What is the difference between concave lens Ray diagrams?? |
| Answer» | |
| 3022. |
Explain the two properties responsible for versatile character of carbon |
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Answer» catenation : it is a property of self linking of carbon atom and form long chains.Tetravalency: it is a property of carbon in which one carbon atom combine with another non metal and form long chains. Catenation and Tetravalency |
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| 3023. |
What is the full form of I.U.P.A.C |
| Answer» International union pure and applied Chemistry | |
| 3024. |
What is change of Cathode or anode |
| Answer» | |
| 3025. |
How we can define resources |
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Answer» Any thing which can fulfill our need is said to be resources. Resources are a free gift of nature and Very useful elements of environment |
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| 3026. |
How is electric resistance is used in a electric bulb |
| Answer» | |
| 3027. |
What do you mean by ph scale write it\'s two application |
| Answer» | |
| 3028. |
When zinc react with hcl then what happens with zinc? |
| Answer» It forms Zinc chloride. | |
| 3029. |
Spore formation in rhizopus |
| Answer» Rhizopus reproduces by spore formation. It attaches to bread by rhizoids, and pillar like substance called hyphae ends in sporangium which contains 100-150 daughter cells called merozoits. Under favourable condition the sporangium ruptures and 100s of merozoits set free and grow into a new individual. | |
| 3030. |
What happen when all substances are biodegra |
| Answer» | |
| 3031. |
Suggest some methods to prevent corrosion |
| Answer» | |
| 3032. |
When feso4change into fe2o3then what is the color of fe2o3 |
| Answer» Brown | |
| 3033. |
Why processed the chemical eqution |
| Answer» | |
| 3034. |
When barium hydroxide react with ammonium chloride then what happens.is is exo or endo thermic |
| Answer» Endothermic | |
| 3035. |
How to convert an alkanes to an alkenes ?? |
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Answer» We have the formula of Alkanes and Alkanes i.e., Alkanes is CnH2n+2 and Alkyne is CnH2n-2. Using these we can convert an ankane to an alkenes Addition reaction |
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| 3036. |
Prove that emergent ray parallel to the direction of original path? |
| Answer» | |
| 3037. |
How many chromosomes are there |
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Answer» There are 46 chromosomes which there 23 pair There are 46 chromosomes in a human body 46 chromosome |
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| 3038. |
What is wave |
| Answer» In physics, a wave is an oscillation accompanied by a transfer of energy. Frequency refers to the addition of time. Wave motion transfers energy from one point to another, which displace particles of the transmission medium–that is, with little or no associated mass transport. Waves consist, instead, of oscillations or vibrations (of a physical quantity), around almost fixed locations.A wave is a disturbance that transfers energy through matter or space. There are two main types of waves. Mechanical waves propagate through a medium, and the substance of this medium is deformed. Restoring forces then reverse the deformation. For example, sound waves propagate via air molecules colliding with their neighbors. When the molecules collide, they also bounce away from each other (a restoring force). This keeps the molecules from continuing to travel in the direction of the wave.The second main type, electromagnetic waves, do not require a medium. Instead, they consist of periodic oscillations of electrical and magnetic fields originally generated by charged particles, and can therefore travel through a vacuum. These types vary in wavelength, and include radio waves, microwaves, infrared radiation, visible light, ultraviolet radiation, X-rays and gamma rays. | |
| 3039. |
From where does we get iron filling |
| Answer» | |
| 3040. |
Shaving mirror is concave mirror |
| Answer» Yes shaving mirror is a concave mirror as it makes the image of an object larger | |
| 3041. |
Molecular formula of alkaene |
| Answer» CnH2n+2 | |
| 3042. |
HCl in our stomach is concentrated or dilute ? With reason...... |
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Answer» Not a factor as mucus protects it Concentrated because its pH value is so low |
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| 3043. |
1kWh= how many joules? |
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Answer» 3.6 into 10 to the power -6 3.6*10^6 joules or 3600000 jouls 3600000J |
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| 3044. |
How are fossils formed |
| Answer» The animals and plants dead remains gets buried into the soil on land or sea. Under high pressure and temperature due to compression , the dead remains gets converted to fossils. | |
| 3045. |
Difference between soaps and detergent |
| Answer» Soap molecule, on reaction with hard water forms insoluble substance called scum. While,detergent does not leave scum on reaction with water and that is why it is a good cleaning agent than soap. | |
| 3046. |
What is structural isomerism ? Draw isomers of pentane. |
| Answer» Isomers are those who have same formula but having different structures | |
| 3047. |
What is vas deferens ? |
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Answer» A duct which passes sperms from testes to urethra for ejaculation. Sperm duct......It carrys sperms???? |
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| 3048. |
How can you prevent corrosion |
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Answer» By galvanization, by applying paint,grease or oil on iron articles. We prevent corrosion by cover it by oil paints,or by greasing iron materials regularly.?? |
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| 3049. |
What all elements are present in fossil fuels accept carbon......???????? |
| Answer» | |
| 3050. |
Displacement reaction explian |
| Answer» Displacement reaction is a type of reaction in which a more reactive element displaces or in simple words take place of the less reactive element. | |