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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.
| 7701. |
Application of concave mirror and convex lens |
| Answer» Concave mirror r use in search lights torches and vehicles headlight | |
| 7702. |
Why in unsaturated compounds the first group is ethyne ??? It should be methyne ryt ?? |
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Answer» It\'s because in unsaturated compounds their is double or triple bond which needs at least two carbon... Therefore the first group is ethene or ethyne If u apply the general formula u will C1H2(1)-2. Thats why it starts with ethyene. Got it. No for alkyne group must be needed 2 carbon atoms |
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| 7703. |
How to draw a ray diagram for m= - 1 using a spherical length??? |
| Answer» Object has to be placed at C and image will be obtained on C of same size as object bt real and inverted.Diagram is not possible | |
| 7704. |
How can we say that flow of energy is unidirectional |
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Answer» Energy is passed from one trophic level to succeeding trophic level. It will never come back from succeeding trophic level to previous one. For example, energy from Sun once passed to plants than it can\'t return back to sun in form of light energy. The flow of energy in the ecosystem is unidirectional (or one-directional). The energy enters the plants (from the sun) through photosynthesis during the making of food. This energy is then passed on from one organism to another in a food chain.Energy given out by the organisms as heat is lost to the environment, it does not return to be used by the plants again. This makes the flow of energy in ecosystem \'unidirectional \'. Thus, the flow of energy in the ecosystem is said to be unidirectional because the energy lost as heat from the living organisms of a food chain cannot be reused by plants in photosynthesisThumbs up please...!!! |
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| 7705. |
Difference between resistance and resistivity |
| Answer» Resistance tells you the specific number of ohms that a phsyical piece of conductor has. Resistivity is the electrical property of a material. The resistance of a specific length and cross sectional area piece of that material (e.g. like carbon, silver or copper) can be calculated using the resistivity property. | |
| 7706. |
Binary equation, right under what condition to ethanol get converted to -ethane-1,2-dibromoethane |
| Answer» | |
| 7707. |
"pH has a great importance in our daily life" explain by giving three examples. |
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Answer» 1)release of acid in stomach2)phenomenon in tooth decay3)in case of acid rain4)to make soil suitable for cultivation In our stomach and tooth decay See ncert book |
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| 7708. |
Why do the birds and reptiles are interconnected? |
| Answer» They have common origin .they evolved due to geographical conditions | |
| 7709. |
What is the condition of cataract ? |
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Answer» A milky or cloudy layer gets deposited on the lens.It can be corrected byy surgical operation Sorry person is unable You write that the person is able to see anything in old age .How it is possible ? Yes it is right In old age the eye lens become cloudy due to which a person is able to see any thing clearly. It is cured by surgery |
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| 7710. |
What is milk formation |
| Answer» | |
| 7711. |
Board exams kk ache s tyari kasi kre ? |
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Answer» Make a time table and distribute your syllabus uniformly From NCERT Practice karte raho bss |
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| 7712. |
Theory portion i have done but i am unable to do the numericals |
| Answer» You have 1 month now and can practice it more | |
| 7713. |
What is the most abundant non metal in the earth\'s crust |
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Answer» Oxygen (50%) second is silicon (26%) Sahi kaha? Hydrogen is most abundant in whole universe. Rohit Kahan se ho? Oh Sorrry mujhe metal lga.. Oxygen Oxygen it is found in water and air Iron shayd |
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| 7714. |
What is chemosynthetic nutrition..What are enzymes..What are palisade tissue..What is thylakoid.. |
| Answer» Enzymes are bio catalyst | |
| 7715. |
When we drop a few drops of acetic acid in a test tube containing NaHCO3 . What will happen? |
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Answer» Nahco3+ch3cooh= ch3coona+h2o+co2 CO2 and water |
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| 7716. |
Then please suggest me a good time table |
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Answer» Make your time table according to yourself Exams are starting from 6th of march????? |
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| 7717. |
What is solenoid?why current within solenoid is uniform? |
| Answer» | |
| 7718. |
Describe two forms in which solar energy manifests itself in oceans. |
| Answer» Tidal,otec | |
| 7719. |
What are esters |
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Answer» Sweet smelling substance formed by reaction of carboxylic acid and alcohol It is in Ncert Easter is a sweet smelling substance. In chemistry, an ester is a chemical compound derived from an acid (organic or inorganic) in which at least one –OH (hydroxyl) group is replaced by an –O–alkyl (alkoxy) group. Usually, esters are derived from a carboxylic acid and an alcohol. |
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| 7720. |
W hat is rancid its? |
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Answer» The oxidation of oils or fats in a food resulting into bad smell and bad taste is called rancidits. It occurs due to oxidation of oils and fats present in food which makes it unfit for eating RANCIDITY |
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| 7721. |
What is roasting and Calcination? |
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Answer» Calcination means heating carbonate ore without the air. Roasting means heating sulphide ore in presence of air Roasting? extraction of sulphide ore into oxide is roasting Calcination? extraction of carbonate ore to oxide ore is Calcination |
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| 7722. |
What is the meaning of starch in hindi |
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Answer» Ooo thanks Chini sugar |
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| 7723. |
What is tetravalency of carbon |
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Answer» It is capable of making bonds with 4 other atoms of carbon or any other element. 4 other elecrons Its ability to combine with four other atoms as it has its valency as 4 |
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| 7724. |
What is the role of acid in our stomact |
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Answer» Wrong Help in digestion. KILL bacteria. Provide acidic medium for proper action of enzymes. Activation of pepsin and renin. To make the medium acidic so that are conditions are favourable for digestion Ritam basu wrong. To provide a acidic medium to enzymes such as pepsin as it works in acidic medium only and also to kill bacterias which come in our stomach along with food.?? Stomach secrete HCl which helps in the digestion of foon Killing bacteria and making the food media acidic so that pepsin can act over it and convert it into peptones. Neutralises the excess HCl produced in our stomach(which causes acidity) and provides us relief |
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| 7725. |
All the Factors which lead to speciation |
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Answer» So fast..... ☆Geographic isolationIn the fruit fly example, some fruit fly larvae were washed up on an island, and speciation started because populations were prevented from interbreeding by geographic isolation. Scientists think that geographic isolation is a common way for the process of speciation to begin: rivers change course, mountains rise, continents drift, organisms migrate, and what was once a continuous population is divided into two or more smaller populations. doesn\'t even need to be a physical barrier like a river that separates two or more groups of organisms — it might just be unfavorable habitat between the two populations that keeps them from mating with one another.☆Reduction of gene flowHowever, speciation might also happen in a population with no specific extrinsic barrier to gene flow. Imagine a situation in which a population extends over a broad geographic range, and mating throughout the population is not random. Individuals in the far west would have zero chance of mating with individuals in the far eastern end of the range. So we have reduced gene flow, but not total isolation. This may or may not be sufficient to cause speciation. Speciation would probably also require different selective pressures at opposite ends of the range, which would alter gene frequencies in groups at different ends of the range so much that they would not be able to mate if they were reunited. Genetic drift.Geographical isolation. Natural selection. |
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| 7726. |
What is frustum of cone |
| Answer» In geometry, a frustum () is the portion of a solid (normally a cone or pyramid) that lies between one or two parallel planes cutting it. A right frustum is a parallel truncation of a right pyramid or right cone. | |
| 7727. |
Name a solid halogen? |
| Answer» Iodine and astatine are solid halogen. | |
| 7728. |
changes happen during puberty? |
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Answer» In boys or in girls?? See page 136 of ncert Such as sexual maturity |
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| 7729. |
Name two components of an ecosystem |
| Answer» Biotic and abiotic | |
| 7730. |
what will happen with XX chromosome |
| Answer» XX is female *** chromosome which take part in determining *** of child. | |
| 7731. |
what is the role of hormones |
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Answer» Sry coordination To stimulate various functions in body for control and coordination. Helps in control and coordinating of your body. |
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| 7732. |
To identify the different parts of an embryo of a dicot seed |
| Answer» Plumule future shoot.Radicle future root.2 cotyledon for nourishing | |
| 7733. |
what is the role of testosterone |
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Answer» Help to make offspring Sperm is male reproductive cell. Testosterone is a *** hormone that plays important roles in the body. In men, it\'s thought to regulate *** drive (libido), bone mass, fat distribution, muscle mass and strength, and the production of red blood cells and sperm. A male gamete Male gamete what is sperm Released hormone by testes .it bring sexual maturity and hair in genital area. Testosterone is a *** hormone that plays important roles in the body. In men, it\'s thought to regulate *** drive (libido), bone mass, fat distribution, muscle mass and strength, and the production of red blood cells and sperm. A small amount of circulating testosterone is converted to estradiol, a form of estrogen. |
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| 7734. |
Arrange sodium nitrogen and carbon in increasing order of theeir basic nature |
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Answer» On going from right to left their basic oxide nature increases These are no basic . YOU ARE WRONG. their oxides are basic but only of sodium. Nitrogen, carbon, sodium |
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| 7735. |
Iron is not used in pure state why |
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Answer» Because in pure state it is soft In pure state it is soft. |
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| 7736. |
plz divide 10 hours for physics,chemistry and biology gor preparation of exam fast plz |
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Answer» 3 hrs for chemistry,3hrs for physics and 4 hrs for biology *for |
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| 7737. |
What is glyclosis |
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Answer» Oxidation of glucose leading to the formation of pyruvate. The oxidation of glucose to pyruvic acid is known as glycolysis?? |
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| 7738. |
Why science video not in Hindi? |
| Answer» No that\'s wrong hindi video h toh | |
| 7739. |
What is haridity |
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Answer» From where pranav you are Transfer of genetic character from parents to their child. It isa properties |
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| 7740. |
What was the draw back of mendeleev\'s periodic table |
| Answer» 1)No fix place for isotopes in the periodic table.2)Atoms were arranged on the basis of atomic mass.3)Hydrogen had no fix place in his periodic table. | |
| 7741. |
What is meant by farmention . How this process is used in prepartion |
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Answer» Use in making wines, medicine.bread The prices of converting glucose in to alcohol in the absence of o2 known as fermentation The process of converting sugar into alcohol in the absence of oxygen is known as fermentation. This process is used to make alcoholic beverages. |
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| 7742. |
What is tracheal respiration? |
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Answer» Yes it help me I hope it may help u ???? Yes right thanks The small holes present outside the body of insects call tracheals The respiration takes place by trachea. It is mostly in insects....like grasshoppers |
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| 7743. |
State two methods to decompose non biodegradable waste |
| Answer» | |
| 7744. |
During cell division what happen in DNA? |
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Answer» DNA DANA get coypied DNA will simultaneously gets copied |
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| 7745. |
what is veins |
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Answer» Veins carry de-oxygenated blood in human body nd it\'s easy visible from outer part of body Veins carry blood to heart Veins are the pipes which carry oxygenated blood |
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| 7746. |
How do mendel\'s experiments show that traits are inherited independently? |
| Answer» | |
| 7747. |
Name the enzymes obtain from used in formation to convert sugar into glucose and glucose into sugar |
| Answer» | |
| 7748. |
Which hormone present in new born child and decreasing after year after year ?? |
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Answer» Yaar I don\'t know plz ask from Google Question thikk se padhoo Growth hormone ? |
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| 7749. |
Where are plastids present ?? |
| Answer» | |
| 7750. |
What is Krebs cycle ??? |
| Answer» Search on Google ? | |