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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.
| 37601. |
Why do onions make us cry ?? Give a suitable answer .. P.. ..plz. |
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| 37602. |
What should I do to score good in science |
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| 37603. |
Can u please explain what is charge |
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| 37604. |
Nominiclature of carbon compound |
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| 37605. |
Give differences between roasting and calcination with suitable examples |
| Answer» Explain | |
| 37606. |
What is vinegar and what are its uses |
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Answer» In pickle 5-8% of aqueous solution of acetic acid is known as vinegar. |
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| 37607. |
Name the sodium compound which is used for softening hard water. Write it\'s chemical formula |
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Answer» Washing soda formula is wrong Washing soda Na2CO3 |
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| 37608. |
Ch4 is whose formula ? |
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Answer» Methane Methane |
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| 37609. |
How to prove the focal length of a plane mirror is infinity? |
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| 37610. |
Why do we prefer vegetative oil to animals fats for cooking purpose |
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Answer» It is a saturated hydrocarbon not unsaturated Thanks Because it is unsaturated hydrocarbon which goes to our body and breakdown into single bond |
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| 37611. |
Name the product formed by the addition of hydrogen and ethane . Also write chemical equation |
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Answer» Okk .. butt do u know answer It will be ethene at the place of ethane in question |
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| 37612. |
Evolution concept can any one |
| Answer» Evolution as formulated by Charles Darwin is the gradual change by which different species have evolved from simple life forms. Living organisms have descended with modifications from their ancestor species by modifying the genetic make up due to mutations and other sources of variation . Individuals that are poorly adapted to their environment are less likely to survive and reproduce and may become extinct. Individuals with characteristics most suited to the environment are more likely to survive and reproduce. This means that their genes are less likely to be passed to their offspring i.e. they are heritable. Evolution ultimately result in the formation of a new species. | |
| 37613. |
Who proposed the theory origin of life |
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Answer» Charles Darwin Charles Darwin |
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| 37614. |
Can any one explain me about evolution now |
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Answer» It is the sequence of gradual changes that takes place in primitive organism and result in the production of new species Thanku evolution is the change in the characteristics of a species over several generation. Evolution means development of an organism from earlier stage |
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| 37615. |
What is vermiappendix and why it became unfunctional in humans. |
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Answer» Vermiappendix is a part of digestive organ which help in digestion of cellulose and it become unfuntional because after evolution human start eating similar form of food like carbohydrates and cellulose is a complex material. Fine finger like projection known as vermiform appendix |
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| 37616. |
Role of placenta in development of embryo |
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Answer» It gives the nutrients and oxygen to the foetus and also excrete out all the waste of the foetus It provide s food for developing embryo |
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| 37617. |
Sexual reproduction promotes diversity of characters in offspring |
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| 37618. |
Prove that for a concave mirror radius of curvature is twice its focal length |
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| 37619. |
What is the stock in grafting |
| Answer» Lower part | |
| 37620. |
Micelle? |
| Answer» Micelle was tha name of helen keller | |
| 37621. |
what evidence do we have for the origin of life from inanimat matter?\xa0 |
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| 37622. |
What is camouflaging?? |
| Answer» Camouflage is the use of any combination of materials, coloration, or illumination for concealment, either by making animals or objects hard to see (crypsis), or by disguising them as something else (mimesis).This process is known as camouflaging.Examples include the leopard\'s spotted coat, the battledress of a modern soldier, and the leaf-mimic katydid\'s wings. | |
| 37623. |
Why Gregor Mendel use pea plant? |
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Answer» \tEasy to grow in a range of climates.\tRelatively fast generation time.\tVariable in easily scored traits (flower colour, hairs, pod morphology).\tEasy to control pollination and hand-pollinate.\tSelf-fertile, so that through inbreeding, lines can be developed that are genetically homogenous for particular traits. Because it is easily available, annual plant. *study Because pea plants grow quickly and are easier to stud |
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| 37624. |
What are the limitations of geothermal energy |
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| 37625. |
formula of ethanoic acid. |
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Answer» CH3COOH CH³COOH |
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| 37626. |
Why we have two eyes for vision not one? |
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| 37627. |
What is the genotypic and phenotipic ratio in a monohybrid cross |
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Answer» Genotypic ratio in monohybrid=1:2:1 and phenotypic ratio in monohybrid=3:1 Phenotypic - 3:1 & Genotypic - 9:3:3:1 |
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| 37628. |
Define noble gas and name all the Nobel gases |
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Answer» On the far right side of the periodic table, in group 18, is a unique group of elements known as the noble gases. The noble gases are a group of extremely nonreactive elements that all exist in the gas state. They are inert. Inertness refers to an element\'s tendency to resist change and reactions.The noble gases include helium, neon, argon, krypton, xenon, and radon.\xa0 The noble gases (historically also the inert gases) make up a group of chemical elements with similar properties; under standard conditions, they are all odorless, colorless, monatomic gases with very low chemical reactivity. The six noble gases that occur naturally are helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe), and the radioactive radon (Rn). Oganesson (Og) is variously predicted to be a noble gas as well or to break the trend due to relativistic effects; its chemistry has not yet been investigated. |
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| 37629. |
Define variations. |
| Answer» Variation is any difference between cells, individual organisms, or groups of organisms of any species caused either by genetic differences or by the effect of environmental factors on the expression of the genetic potentials. | |
| 37630. |
What is netron |
| Answer» A neutron is a subatomic particle found in the nucleus of atoms that differs from the other subatomic particles (protons) because neutrons have no (zero) charge whereas each proton has a positive charge of +1. | |
| 37631. |
What are the main advantage of detergent over soap |
| Answer» That it can be used in hard water as well as soft water | |
| 37632. |
Which r the question paper or sample paper which can be practice at home for class 10 |
| Answer» Last 5 years | |
| 37633. |
Give the examples of natural propagation by stems |
| Answer» Rhisomes | |
| 37634. |
Seminar on forest products |
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| 37635. |
Why do sky appear blue |
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Answer» Thankuuu brthr Because of atmospheric refraction |
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| 37636. |
What is tricycle? |
| Answer» A tricycle is a human-powered (or gravity-powered) three-wheeled vehicle. Some tricycles, such as cycle rickshaws (for passenger transport) and freight trikes, are used for commercial purposes. | |
| 37637. |
What is bicycle? |
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| 37638. |
Are the bees edible?? |
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| 37639. |
Is plant-bee-human a food chain |
| Answer» We get honey from bees but do not directly eat the bees | |
| 37640. |
What is genes????? |
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Answer» Genes are functional units of heredity as they are made of DNA. It is the smallest unit of DNA in which characteristic or traits are transfer to parent body to new born baby.. Okkk |
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| 37641. |
Did doberener\'s triads also exist in the colums of newlands octaves ?compare and find out |
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Answer» No Yes |
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| 37642. |
What is a coliform.? |
| Answer» Coliform is a rod shaped bacteria present in the digestive tracts of animals and humans... Is it clear.. | |
| 37643. |
Haa muje pura btana h cleaning action of soap |
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| 37644. |
What is cleaning action of soap (mecelle formation) |
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| 37645. |
Why does carbon form large number of compounds |
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Answer» Because:• It is tetravalent and shows catenation property Tetravalent |
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| 37646. |
Does on heating diamond produce ash |
| Answer» No ash is produced. | |
| 37647. |
What is the easiest way to draw puneets square |
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| 37648. |
Why Graphite has high melting point than Diamond? |
| Answer» Carbon (diamond) has a melting point of 4440°C at 12.4 GPa.Carbon (graphite) has a melting point of 4489°C at 10.3 MPa.The melting point of graphite is slightly larger than the melting point of diamond, because in graphite C-C bonds have a partial double bond character and hence are stronger and more difficult to break. There are also Van der Waals forces between the layers of graphite but these are relatively weak in comparison to a covalent bond. These weak forces allows layers of graphite to slide past each other. | |
| 37649. |
What is exothermic and endothermi defferenc |
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Answer» \t\xa0ExothermicEndothermicDefinitionAn exothermic reaction is just the opposite of an endothermic reaction as it produces heat.An endothermic reaction is that type of reaction which require or needs energy. This energy is supplied from the surroundings.Symbolic EquationA --> B + C + energy\xa0A + energy --> D\xa0ExamplesDigestion of food releases energyAll combustion reactions (fires)Adding an alkali metal to water2 Na + 2 H2O --> 2 NaOH + H2 + energyMelting of ice absorbs\xa0energyDissolving ammonium\xa0nitrate in water (the\xa0essence of commercial\xa0cold packs)Energy ContentEnergy content of the products is more than than the reactantsEnergy content of the reactants is less than the products\t Exothermic recations are reactions that give off heat while reacting and endothermic reactions absorb heat for the reaction and make the beaker or vessel cold.For ex- Methane +oxygen gives Carbon dioxide along with water.(exothermic reaction example)Endothermic reactions examples- evaporation of water, melting of solids ,etc. |
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| 37650. |
What is full form of AIDS ? |
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Answer» Acquired immuno deficiency syndrome Acquired Immune Deficiency Syndrome Acquired immune deficiency syndrome |
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