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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.
| 41701. |
Why heating elements of electric appliance are made up of alloy rather than metal |
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Answer» Because alloys are stronger than the metal 1. Alloys do not undergo oxidation even at high temperatures.2. They have high resistance |
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| 41702. |
Two 60w,220v and 40w. 220v are connected in series which bulb will glow brighter |
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| 41703. |
What colour In penophethline base alkail |
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| 41704. |
Practical exam syllabus 2018 |
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| 41705. |
What is stngamy |
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| 41706. |
What is the difference between virtually erect image and real inverted image? |
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Answer» Hi Thanks hiii Image which is above principal axis is erect image and image which is down the principal axis is inverted image |
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| 41707. |
Difference between regeneration and fragmentation |
| Answer» \tFragmentationRegenerationOrganisms that are fragmented result in each fragment growing into an individual organismRegeneration occurs when an organism only regrows a lost limb or any other part of the body.A new individual emerges from each fragmentNo new organisms are formedOnly a few organisms can fragment and form new individualsAll organisms exhibit the ability to regenerate (Only to some degree)Fragmentation is observed in organisms such as flatworms and spongesExamples of regeneration include regrowing a lost limb, such as the tail of a lizard. (Please note: Most lizards can lose their tails and then have them grow back. But if they lose their forelimb or hindlimb, it will not regrow)\t | |
| 41708. |
"Hydrocarbons are not a good conductor of electricity". Give reason to justify this statement. |
| Answer» They don\'t form ions when mixed with water but carboxylic acids form ions so there is exception | |
| 41709. |
Name two element that are used in fabricating solar cells. |
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Answer» Silicon and silver are the two elements that are used in fabricating solar cell Silicon and silver |
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| 41710. |
How to get Ethane from ethanol? |
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Answer» dehydration Remove hydroxide and add hydrogen |
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| 41711. |
Hydercarbons are not a good conductor of electricity |
| Answer» Becoz no charged specie is formed during its formation. | |
| 41712. |
Penopthlene |
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Answer» Synthetic indicator Use as indicator |
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| 41713. |
Why a milk man usually adds a very small amount of baking soda to fresh milk during summer season? |
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Answer» To prevent it from getting sour and formation of lactic acid TO make milk basic so that milk will take more time to become acidic and to get spoiled |
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| 41714. |
Molecular mass of an organic solvent "p" is 46u which is used to remove chlorophyll. Identify p |
| Answer» Ethanol | |
| 41715. |
What happens when we add out waste to the environmental? |
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| 41716. |
Name a fossil fuel other than coal and petroleum |
| Answer» natural gas | |
| 41717. |
What is meant by galvanisation |
| Answer» It is a method of protecting steel and iron from rusting by coating them with a thin layer of zinc. | |
| 41718. |
How does aleovoli works |
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Answer» Alveoli are the sac like structures that help in exchange of gasses through small capillaries in it. Villi have finger like protection Himanshu I think alveoli don\'t have finger like protection Alveoli is finger projection like structure which absorbs nutrient and transfer it to the blood |
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| 41719. |
Two bulb have rating 100W,200V and 60W,220V respectively. which one has a greater resistance? |
| Answer» 60 watt, 220 v has greater resistance I.e, 806.66 ohm | |
| 41720. |
Write name and function of two harmone secreted by pituitary gland |
| Answer» First is growth hormone which helps in the gowth of the body... | |
| 41721. |
What is xylem |
| Answer» Xylem are the vessel which transport water and minerals from roots to other parts of the plant | |
| 41722. |
what is difference between light and dark phase |
| Answer» \tLight ReactionDark ReactionIt takes place only in the presence of light.It can take place in the\xa0presence\xa0or\xa0absence\xa0of sunlight.It is a photochemical phase.It is a biochemical phase.It takes place in the grana of the chloroplast.It takes place in the stroma of the chloroplast.NADP utilizes H+ ions to form NADPH.The hydrogen of NADPH combines with CO2.The end products are ATP and NADPH.Glucose is the end product. ATP and NADPH help in the formation of glucose.The water molecules split into hydrogen and oxygen.Glucose is produced. Co2 is utilized in the dark reaction.Photolysis occurs in PS-II.Photolysis does not occur.\t | |
| 41723. |
How does stagnant water helps the amphibians to continue their generations |
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| 41724. |
If power of lense is -4.5 dioptre then how I calculate focal length please give me detail solution |
| Answer» P=1/fBy putting value in the formula you will get your answer.... | |
| 41725. |
Define double circuit circulation |
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| 41726. |
Two vital functions of kidney |
| Answer» Remove toxic waste nd maintain water, salt level in body | |
| 41727. |
Find out what happen to waste generated at home . Is there a system in place to collect this waste |
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| 41728. |
what does mandleevs periodic law states |
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| 41729. |
Which fuel have highest calorefic value |
| Answer» Hydrogen fuel | |
| 41730. |
Which type of questions can come in physics |
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Answer» Jiiiiiiii Achchaaaaaaaaaaaaaaaaaaaaa Haaaaan nhiiiii Ab toh aur daranungi ???? draiye mt..plzz mera abhi xam nhi hua h Hard No idea... Questions based on the concept of NCERT |
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| 41731. |
Why carboxylic acids are weak acids |
| Answer» Carboxylic acids are weak acid because it is made up of covalent bond and we know that covalent compounds are weak (i.e. weak force of attraction of particles between them). | |
| 41732. |
What quantisation of charge? |
| Answer» Q=ne | |
| 41733. |
Name the acid present in:- lemon juice VinegarVitamin c tablets TamarindSour milk |
| Answer» lemon- citric acidvinegar-acetic acidvitamin c-citric acidtamarind-tarteric acid | |
| 41734. |
why classification is evolutionary? |
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| 41735. |
Name the acid which is in our stomach . What king of help the acid do for our body |
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Answer» Hcl makes an acidic medium in our stomach so that papsin can work HCL. HCL serves to activate these enzymes like pepsin and renin and also makes the medium acidic. HCl , 1.it kills the bacteria in our stomach2.it activates the pepin to form propepsin which digest the food HCl acid is present in our stomach .which help to kill germs and bacteria or break down food in small particles. |
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| 41736. |
What is neutralisation |
| Answer» reaction between acid and base to form salt and water | |
| 41737. |
CO2 is acidic or basic |
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Answer» Basic Basic Basic |
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| 41738. |
Why double displacement reaction is not called redox reaction ? |
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| 41739. |
Give one example of Uses of ethanoic acid |
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Answer» Thank you ethanoic acid with 95% water(vinegar) is used as preservative Ethanoic acid is mixed with petrol because in hill station the petrol used to freeze.It enables the petrol to freeze. |
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| 41740. |
Who discovered evolution? ?? |
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Answer» Which school do you study samira Charles Robert Darwin |
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| 41741. |
What are the limitations of dobreiner law of traid |
| Answer» It is only applicable for group A and group C element not for B and the newly discovered elements not follow the triads | |
| 41742. |
Calculate the number of electron constituting two coulomb of charge. |
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| 41743. |
What is the role of Auxin in Plant growth? |
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Answer» Auxin help the cells to grow longer It occur in the shoot tips and grow in the direction of light Helps in plant growth and situated in tips of plants |
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| 41744. |
What is the role of enzyme trypsin ? |
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Answer» And also helps in digesting protein Trypsin enzyme digests the starch and proteins and emulsifies fat. It changes food from acidic to alkaline medium It make food acid medium in stomach |
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| 41745. |
catenation? |
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Answer» The property of an atom to form long chain of atoms is known as catenation. Silicon, Carbon, etc. bear such type of property... Property of carbon to form long chain. The tendency of carbon to form long chain of carbon atoms is called catenation. The self linking property |
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| 41746. |
Why chemical reactions are irreversible |
| Answer» Because new product is formed nd change his property | |
| 41747. |
Why hydrogen goes to cathod |
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Answer» Because hydrogen ions are anion negative charge and goes to positive cathode Because hydrogen ion has positive charge |
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| 41748. |
Dot structure of decyne |
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| 41749. |
what would be the colour of litmus in a solution of sodium carbinate |
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Answer» Blue the colour of sodium carbonate is blue Blue i.e basic in nature |
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| 41750. |
What is biogas plz briefly explain |
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Answer» thanks Bio is obtained when the biomass like vegetable waste, cowdung and other biodegradable substance are mixed with water,when the slurry goes under anaerobic fermentation in absence of oxygen by microorganisms gives biogas with 75%metane ,than H2S ,H and CO2 Or more easy I explain if u say Biogass is a gas typically refers to a mixture of gas formed by the breakdown of organic compounds and constitutes mainly methane gas I will explain u |
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