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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.
| 47601. |
Iron nail is which type of reaction |
| Answer» Redox reaction | |
| 47602. |
Why silver turn black |
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Answer» Ag + H2s = AgS... Black Because it when comes in contact with oxygen it forms silver sulphide and that\'s why... |
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| 47603. |
What is rusto chemical? |
| Answer» | |
| 47604. |
Why do we get reddish brown coating on iron ? |
| Answer» Due to rusting of iron | |
| 47605. |
Megha. ....? |
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Answer» Are usko Bolne do na yar....megha...? ??? Megha baras jaa. bb???? |
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| 47606. |
Megha. ...?? |
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Answer» Han to mai abb chlata hun...kyon ki tum abb Jal me phss gyi ho...ab name change krna mai..phir pata kar lunga???? Aa gyi? Ooo ??? Are yar usko Jal me phasa rha tha....khi name change kregi to pata kar Lunga iissse Kya ho gya bhaii bar bar usks name kyu. Likh rhs h |
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| 47607. |
Mujse to koi bat hi nahi karta |
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Answer» Na ji na kar rhe h na Mean people Too bad Hlo butt byeeee |
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| 47608. |
What is the chemical formula of lactic acid and pyruvate or pyruvic acid?? |
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Answer» It is CH3CHOHCOOH or simply C3H6O3 but anshu your formula is not correct . yes,the formula for pyruvate is correct. Formula of Lactic Acid is C2H6O2...its for sure.. Ok And for pyruvic acid (CH3COCOOH) yes,correct.and for pyruvate? For lactic acid C3H6O3 Do anyone know it? If not then say NO. |
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| 47609. |
What is difference between dna, chromosome,gene ,chromatids |
| Answer» Dna is the information source for making protein in cell.gene is a segment of dna that is involved in producing basic unit of heredity.chromosome carry genetic information in form of gene | |
| 47610. |
What is khadin system? |
| Answer» | |
| 47611. |
What is difference between evolution and speciation? |
| Answer» Evolution: (i) Evolution is the sequence of gradual change which takes place in the primitive organisms over millions of years and new species are produced. Since the evolution is of the living organisms, so it is called ‘organic evolution’.(ii) It helps an organism to survive in its surroundings.(iii) Evolution is considered as a progressive process.Speciation : (i) Speciation is the evolution of reproductive isolation among once – interbreeding populations. That is the development of one or more species from an existing species.(ii) It helps in adaptation to new environmental conditions.(iii) Geographical isolation plays an important role in speciation. | |
| 47612. |
Why the evolution happen |
| Answer» | |
| 47613. |
What do you mean by ecosystem?what are its 2types |
| Answer» It is a system in which all plants and animals depended on other plants and animals directly or indirectly . | |
| 47614. |
Which one is sexually transmitted diseases |
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Answer» Syphilis Gonnorea ,syphallis,aids Aids CANCER |
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| 47615. |
is working of motor is in xbse new sallybuss |
| Answer» Yes | |
| 47616. |
Draw the structure of butanoic acid |
| Answer» CH3—CH2—CH—COOH | |
| 47617. |
Diamond so formed are brought to the surface to which rock |
| Answer» | |
| 47618. |
How does evolution occurs? |
| Answer» Natural selection and sexual selection.Explanation:I\'m sure this has been answered in detail, so basically:Evolution is the change of the frequency of alleles over time.Natural selection: Some cause--environmental, predation, chemical, competition, resource change, etc--leads to a change in a population, however large or small. The longer this occurs, the more noticeable the change and the greater the possibility of creating new species.Sexual selection: females prefer males with certain characteristics, or certain characteristics help males compete with other males for mates (sometimes *** rolls are reversed). Since these characteristics increase reproduction, they will be inherited by young that will also have more reproductive success. And, the population will change over time. | |
| 47619. |
Role of auxin in plants?? |
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Answer» 1.They help in cell enlargement and cell differentiation 2.They also promote fruit growth. Auxin helps in growth of stem Auxin help in growth of plant.... It promote stem elongation, Mainly helps in growth... Control growth of root and stem it promotes the growth of plant |
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| 47620. |
What is bleeching powder |
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Answer» DJ ur equation is wrong. The correct equation is CaOCl2 bleaching powder - a white powder comprised of calcium hydroxide and chloride and hypochlorite and used to bleach and/or disinfectbleaching powder - a white powder comprised of calcium hydroxide and chloride and hypochlorite and used to bleach and/or disinfect. Caocl2 |
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| 47621. |
why we use only karosine oil to kept Sodium and pottasium |
| Answer» Because they are very reactive and catch fire when kept In open ...so to prevent accidental fire ...... | |
| 47622. |
Write two names of nerve processes. |
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Answer» Is axon and dentrite wrong? Inka full form kya hai CNS AND PNS |
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| 47623. |
Khushi aapne bataya nhii???plz bataoo |
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Answer» Lagate* Aap skb kyu pagate ho What |
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| 47624. |
What is Chlor alkali process. Write a balanced chemical equation? |
| Answer» | |
| 47625. |
Which among iron and mercury is a better conductor? Give reason. |
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Answer» Iron....Bcz its resistivity is less than mrcry Iron |
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| 47626. |
How is aluminium used to join railway track?explain the process with chemical equation. |
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Answer» Thanks nancy Aluminium Powder is used for the thermite reaction as it reacts with Iron(II) Oxide to give molten Fe. The following reaction takes place:Fe2O3 + 2Al = Al2O3 + 2Fe (Thermite welding)This reactions is used to apply the molten Fe which then solidifies and joins the railway tracks. |
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| 47627. |
Chapter 18 what is chlorination |
| Answer» the process in which chlorine is added in water to make it fit for drinking called chlorination | |
| 47628. |
KYA SAB 28MARCH KO IS APP PE AAOGE MATHS KA EXAMINATION DEKAR |
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Answer» Ooo Haryana Tanuja aap kahaan se ho Me too Ha |
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| 47629. |
what is the differenve between respiration and brething |
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Answer» Breathing is a physical process while respiration also includes some chemical reactions such as oxidation of food to produce energy Basic difference is spelling difference??? |
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| 47630. |
What is tantrums |
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Answer» nakhre Nakhra |
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| 47631. |
Ishita singh sorry.main galat thi.aage kuchh mat bolna pls. |
| Answer» | |
| 47632. |
Function of split rings : |
| Answer» Split rings are used in dc motor to keep the flow of current in same direction or the motor turning in the same direction . If there is no split ring then the spindles move in the reverse direction during the negative half cycle of the a.c. | |
| 47633. |
What is acetylene? |
| Answer» Ethyne | |
| 47634. |
Why we does not rise above when a high tide occurs and why not shrink wgen liw tide occurs? |
| Answer» | |
| 47635. |
What is geographical isolation??? |
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Answer» Geographical isolation is when diffrences occur in the same area due to some natural calamity or some other due to some other reason between two our more species and two different species can\'t reproduce with one another and variation donot occur. It means separation of species by physical barriers like mountains,oceans,etc. When a species divides into two different ones by residing in different places having different climate.. Like bears.... And polar bears This is not in syllabus and you are from 12 |
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| 47636. |
Zno+c=Zno +co |
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Answer» Wrong equ. . Its half question |
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| 47637. |
What is the scientific na!e of prawn and cockrech |
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Answer» Periplaneta americana Penaeus esculantus |
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| 47638. |
what is hydogenation |
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Answer» Ghee* Use in making vanspati gh The addition oh hydrogrn Reaction in which an unsaturated compounds add hydrogen in the presence of nickel catalyst to give saturated hydrocarbons |
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| 47639. |
All bases are alkali? |
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Answer» All alkali are bases but the vice versa is not true Naoh , mgoh No only bases which can dissolve in water |
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| 47640. |
What is plumbago |
| Answer» | |
| 47641. |
What is the far point and near point of human eye with normal vision? |
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Answer» Near point =25 cm // Far point= infinityi.e, 25cm to infinity... Near point 25 cm....nd far point infinitely |
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| 47642. |
Why is GRAPHITE known as BLACK LEAD? |
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Answer» Benzene can you solve my Q Becoz of its metallic appearance |
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| 47643. |
The first tropic level In food chain is always a green plant.Why? |
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Answer» Bcz they r the producers Because they r the producers because because ??????? Because they trap solar energy |
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| 47644. |
Both soap and detergent are some types of salts |
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Answer» Good Soap r sodium or potassium salt of long chain carboxylic acids detergents r generally ammonium or sulphonate salts of long chain carboxylic acids |
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| 47645. |
How can we have stream of electron |
| Answer» | |
| 47646. |
Difference between style and pollen tube |
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Answer» Pollen tube --it helps the male germ cell to reach to the ovary Style --it is a part of pistil Style --it is a part of |
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| 47647. |
What are dehydrating agents? |
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Answer» Substance which helps in removing h20 from any chemical called dehydrating agent A chemical compound sd to derive the dehydrating reaction reaction The substances which can remove water from another substances. |
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| 47648. |
What is cocave mirror and convex mirror |
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Answer» A convex mirror is a spherical mirror where the mirrored surface is on the outside of the spherical curve. And a concave mirror is a spherical mirror where the mirrored surface is on the inside of the spherical curve. ... And convex mirrors always produce images that are upright, virtual and smaller than the object. Concave mirror are bulging inwards and convex mirror bulging outwards Cocave nahi concave |
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| 47649. |
Who the hell is sudhanshu ????????? |
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Answer» Kya kh rha h ??? Oyeee mera chhota bhaiii h WO???? Oye e kya problem ha |
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| 47650. |
What is reflection of light |
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Answer» When a ray of light touches a shiny and polished surface it retraces it\'s path known as reflection of light. U r right surbhi Hiiiii Bouncing back of light after hitting a hard surface |
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