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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.
| 55451. |
Name the main excratory organ present in kidney. |
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Answer» The structural n functional unit of kidney is nephron Nephron Nephron and in each kidney more than one lakh nephron is present Nephron |
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| 55452. |
What is skeletol reaction |
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Answer» Thanks. Yogita????❤️❤️ A skeletal equation is such a chemical reaction in which, the reactant and products are identified with their chemical formula but their quantity and proportion is not identified . For ex: Formation of magnesium oxide by burning Mg -ribbon in presence if oxygen as:Mg + O2 → MgOThe above equation is just a skeletal equation where the formulas are written but the no. of atoms are not balanced so the balanced chemical equation is ,2Mg + O2 → 2MgO Please. Any. Body. Know. About. This. Question |
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| 55453. |
What is the difference between oxidation and respiration |
| Answer» Respiration: Respiration includes breathing as well as the oxidation of food in the cells of the organism to release energy. The process of respiration involves the lungs and mitochondria of the cells.Oxidation: The reaction proceeds by the addition of Oxygen (or) removal of hydrogen is called oxidation (or) Loss of electrons (or) the reaction proceeds with increase in the oxidation state (charge) of the central atom is called oxidation. | |
| 55454. |
What is the meaning of reproductive isolation |
| Answer» When organisms of same species ate isolated from each other for a very long time then their dna changes and when they meet again they cannot reproduce it is known as reproductive isolation | |
| 55455. |
What is the actual definition of refraction? |
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Answer» The bending of light from one medium to another The bending of light ray when it goes from one medium to other medium is called refraction. |
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| 55456. |
Give improtant properties of magnetic field lines |
| Answer» Travels from north to south outside the magnet while travels south to north inside. never intesect each other and denseness of field lines show the strength of these lines... | |
| 55457. |
What do you mean by magnetic field lines of force? |
| Answer» The magnetic line of force in an imaginary line around the magnet which travel form north to south pole. It also make a close loop. | |
| 55458. |
Define magnetic lines of fòrce. |
| Answer» Magnetic line of force:\xa0 Magnetic line of force is a line drawn in a magnetic field along which a north magnetic pole would move.\xa0Properties of magnetic (field) lines of force are as the following.\t\xa0No two magnetic lines of force intersect each other.\tThe field lines emerge from North Pole and merge at the South Pole.\t\xa0The direction of field lines is from its south pole to its north pole.\t\xa0Magnetic field lines are the closed curves. | |
| 55459. |
How refraction is taken? |
| Answer» Due to change in medium of speed of light. | |
| 55460. |
Name the main bleaching agent present in bleaching powder. |
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Answer» This answer is chlorine . Ca(OCl)2 Calcium hypochlorite Ca(OH)² Nhi wrong hai CaOCl2 Calcium hypochlorite Slaked lime |
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| 55461. |
What is sodium reaction with ethanol |
| Answer» Sodium react with ethonol to form sodium ethonate and hydroxide | |
| 55462. |
What happen when fertilisation is not occurs? |
| Answer» Menstruation | |
| 55463. |
Electronic configuration of sodium |
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Answer» 2,8,1 2,8,1 K=2L=8N=1 2,8,1 |
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| 55464. |
What is colon? |
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Answer» Rich French people called as colon Its large intestine. It a exact copy of plant and animal from one cell copy it DNA It\'s a part of large intestine |
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| 55465. |
Whose speed is more reflex action or light? |
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Answer» Light Light The speed of light is more |
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| 55466. |
What are 3 parts of small intestine? |
| Answer» The three parts are : the duodenum, jejunum, and ileum. | |
| 55467. |
Why cannot fertilisation take place in flower if pollination does not occur? |
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Answer» In sexual reprodution gametes are invole . So, without fusion its is not possible. If pollination doesn\'t occur then the male gamet of flower i.e. anther doesn\'t reached to the stigma of the carpel which simply means that the necessary conditions for the fertilisation are not fulfilled so fertilisation doesn\'t occur Because in pollination pollen grain is transfered which is male gamete and when it goes to stigma in respons form pollen tube and pollen grain go to ovule where ova female gamete present and start fertilization. |
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| 55468. |
Mujhse electron dot structure nhi banta kaise banau?? |
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Answer» Outermost shell me jo electron hai oohi valancy electron hote hai.Agar tumko carbon dioxide ka dot structure bnana hai thoo1. Carbon ki 4 valancy electron hoti hai.2. Oxide ki 2 hoti hai ,per yaha dioxide hai isliye oxide 2 lene padhega. O::C::OCarbon dono se apna electron share kar apna octa complete kar leta hai .Isliye C=O2 ke saath dobble bond rhta hai With the help of valence electrons Jitne bhi outermost orbit me eletron hai unki help se |
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| 55469. |
Difine the princple focus of a concave mirror |
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Answer» Principal focus is a point on principal axis of concave mirror where the rays are parrallel yo principal axis meet after reflection from the mirror The point on the principle axis from where rays after reflection is passes . |
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| 55470. |
Why we need carbon to live? |
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Answer» The basic composition of organic (living) orgsnism is carbon Carbon is needed to live because the food we eat is made up of carbon Because a life wass orgienated from simple carbon compound |
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| 55471. |
Why lizard is considered to reproduce by regeneration? |
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Answer» But here .....not a new individual is formed by regenerating ....that lizard will be the same one so how can it be considered as examples for reproduction by regeneration. Some parts of lizard like tail are considered to be reproduced by regeneration because a lizard have regenerative cell which help it to regenerate No lizard cant reproduce by regeneration .. Only some parts of lizard can be regenerated . but if we cut the whole lizard into two pieces it will die.. So from this we can conclude that only few body parts of lizard like tail or feet can be regerated but not the whole lizard |
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| 55472. |
Cases of convex lens |
| Answer» They are two cases only | |
| 55473. |
What is magnetic effect of electrici current |
| Answer» Magnetism means that an electric current flowing through a wire produce a magnetic field around it. | |
| 55474. |
Uses of concave mirror?? |
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Answer» Can u give me three or four uses?? it can be used asshaving mirrorit is used by dentist to c the teethas searching light in the vehicle |
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| 55475. |
How to find out atomic mass |
| Answer» Using period table | |
| 55476. |
What is meant by sexual intercourse? How is it done? |
| Answer» ??? | |
| 55477. |
How can we find out which character is dominant or reccesive... |
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Answer» The character which express itself is dominent and which do not is recessive You cannot yourself find a character dominant or recessive. The dominant character is shown in the maximum progenies in the next generation following Mendel\'s ratio of 3:1.\xa0 |
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| 55478. |
What is artificial propagation |
| Answer» \tThe process of growing many plants from one plant by man - made methods is called artificial propagation of plants.\tThe three common methods for the artificial propagation of plants are : a) Cutting b) Layering and c) Grafting.\ta) Cutting: A small part of a plant which is removed by making a cut with a knife is called cutting. A cutting may be a piece of stem, root or even to a leaf. Eg: Rose, Bougainvillia, Sugarcane, Banana, etc.\tb) Layering: In Layering a branch of the plant with at least one node is bent towards the ground and a part of it is covered with moist soil leaving the tip of the branch exposed above the ground.\tAfter sometime, new roots develop from the part of the branch buried in the soil. The branch is then cut off from the parent plant. Eg: Nerium, Hibiscus.\tc) Grafting: In grafting two plants are joined together in such a way that two stems join and grow as a single plant. Eg : Mango, Citrus, Apple, Rose, etc. | |
| 55479. |
Har subject mein board k paper k liye kitna depth mein jaein |
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Answer» To score good get limited to ncert Depth me nhi jaoge to marks depth me chala jayga Puri depth meee |
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| 55480. |
Why carbon is tetravelent?? |
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Answer» Because it has 3 cobon Why is carbon tetravalent?an atom is stable only when it acquires the octet electron configuration or the nearest noble gas configuration. to attain this carbon with 4 electrons in its outer most shell must either accept 4 electrons or donate four electrons, both are not possible due to the small size of carbon. so it shares four electrons with neighbouring atom and become tetravalent. |
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| 55481. |
Give the constituents of the alloy which is used for welding of electrical wires |
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Answer» Tin and lead as they have low melting point Tin and..... |
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| 55482. |
Metallic character |
| Answer» Metallic Characters are:1. They are lustrous (shiny).2. They are malleable (can be beaten into thin sheets).3. They are ductile (can be beaten into thin wires).4. They are sonorous (produce sounds).5. They are electro-positive elements and lose one or more than one electrons to form positive ions.6. Metals form basic oxides.7. Most of the metals displace hydrogen from water or steam. | |
| 55483. |
Why does calcium float im water ? |
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Answer» Ca(s) + 2H2O(l) → Ca(OH)2(aq) + H2(g)The reaction of calcium with water is less violent. SO, the heat released is not sufficient for the hydrogen to catch fire. Calcium starts floating because the bubbles of hydrogen gas which are formed during the reaction stick to the surface of the metal and hence calcium floats on water. It has less density than water |
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| 55484. |
What is gastation period? |
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Answer» The time of the mother organism carry new organism The time of the mother organism carry new organism |
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| 55485. |
Difference between the convex and biconvex lens |
| Answer» Biconvex lens are the simple lenses which comprises of two convex surfaces in spherical form, generally having the same kind of radius of curvature. These are also called as convex-convex lens. In a biconvex lens or a Plano-convex lens, a collimated or\xa0accurately parallel beam of light passes through the lens and converges at a spot or focus coming behind the lens. In such case, this lens is known as a converging or positive lens. | |
| 55486. |
Define the term optical centre |
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Answer» The optical centres of a lens is a point on the principal axis of lens , such that a ray of light passing through it goes undeviated........?? Optical centre is the centre of lens on aperture just like pole in mirror. Optical centre: It is the geometrical centre of the lens.Radius of curvature: It is the radius of the sphere of which the surface of the lens is part of.Focal length: It is the distance between the optical centre and the principal focus of a lens. Mid point of lens |
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| 55487. |
Why carbon do not frank inorganic compound? |
| Answer» Due to its tatra valency or covalency | |
| 55488. |
Difference between organic and inorganic compound |
| Answer» The main difference between organic and inorganic compounds is that organic compounds contains carbon atoms i.e. hydrogen atoms to form hydro carbon whereas most of the inorganic compounds dont have .second organic compounds compounds contain nucleic acid,fatty acid and lipids whereas inorganic compounds contain salts,metals and other elemantal compounds. | |
| 55489. |
Define soapifition |
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Answer» Alkaline hyrolysis of ester is called saponification.. The process of making soap by hydrolysis of fats and oil with alkalis is called saponification |
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| 55490. |
a current carrying rod ,AB,experienceof force perpendicular to its length and the magnetic field. |
| Answer» | |
| 55491. |
Nutrition in animal |
| Answer» Nutrition is the process of obtaining food and then using it for obtaining energy, growth and repair of the body. There are five main processes concerned with the use of food by animals. As we know that Plants produces their own food by the help of photosynthesis. But animals are heterotrophs and hence they depend on other organisms for their food. This readymade food comes either from plants or from other animals. We are also animals and obtain food from plants in the form of rice, pulses, vegetables etc. and foods like milk; eggs, chicken, fish etc are obtained from other animals. | |
| 55492. |
How mucus protects the wall of the stomach |
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Answer» mucus lie between HCL and wall of stomach to protect the wall from HCL By protecting the wall from harmful acidic effect of HCl |
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| 55493. |
How mucus protacts the wall of the stomach |
| Answer» Gastric Glands are present in the wall of the stomach that release secretions for digestion of food.The gastric glands produce gastric juice which contains three substances:1. Hydrochloric acid2. Pepsin Enzyme3. Mucus.Due to presence of HCl, the gastric juice is acidic in nature . In acidic medium, the enzyme pepsin begins the digestion of proteins present in food to form smaller molecules . HCl kills any bacteria which may enter the stomach.The mucus helps to protect the stomach wall from its own secretion of HCl.\xa0 | |
| 55494. |
Why does our heart pump??? |
| Answer» The cardiac muscles cells or tissue present in heart contract and relax ruthimically as a result the muscles of heart also do the same in this way our heart is able to pump | |
| 55495. |
Vasectomy and tubectomy and contraceptive methods |
| Answer» VASECTOMY- 1.It is a surgical process carried out in male.2.In this surgery a small portion of sperm duct is removed by surgical operation and both the cut are ligated properly.3.This surgery prevent the sperm from coming out or slow the speed of sperm.TUBECTOMY- 1.It is a su4gical process carried out in female.2.In female a small portion of oviduct is removed by surgical operation and cut part are ligated.3.This prevent the ovum from entering into the oviduct.CONTRACEPTIVE- Any device or chemical which prevent pregnancy in female is called contraceptive.Birth control method can be broadly divides as:-1.Barrier method2.Chemical method3.IUCD method (Intra Utrine Contraceptive Device)4.Surgical method | |
| 55496. |
What are \'biodiversity hotpots\'? What is the measures of biodiversity? |
| Answer» A biodiversity hotspot is a region of the Earth that is extremely biologically diverse and also under severe threat due to habitat loss, climate change, or extensive species loss. Guarding these regions from further damage is considered environmentally and culturally important, as they host organisms that are not found anywhere else on Earth. | |
| 55497. |
The working and construction of electric motor |
| Answer» Working - it convert electrical energy into machenical energy. It help in reversal of current in circuit.It has split rings .And we use fleming\'s left hand rule to find the direction of current. | |
| 55498. |
Full form of ATP and ADP and there function |
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Answer» Adinosin dry phosphate and Adinosin triphosphate Full form of Atp is adinose tri phosphate.Full form of Adp is adinose di phosphate |
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| 55499. |
Difference b/w self-pollination and cross-pollination |
| Answer» SELF POLLINATION1 it occurs within the same flower or between two flowers of the same plant.2 flowers do not depend on other Agencies for pollination.3 pollen grains are produced in small numberCROSS POLLINATION1 it occurs between two flowers on different plants of the same species.2 agents such as insects water and wind are required for pollination.3 pollen grains are produced in large number | |
| 55500. |
Why is abscisic acid called the stress hormone ??? |
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Answer» I understand but i want to know that what r these stress conditions Abscisic acid called stress harmone because it induces various responses in plants against stress conditions . It increases the tolerance of plant towards various stresses. I also want to know I also want to know more.... Aman How can we elaborate it more Because it releases during stress |
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