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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.
| 65351. |
Why herbivores have longer intestine than carnivorous |
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Answer» Herbivores have longer small intestine because they eat grass , grass contains cellulose which is difficult to digest whereas carnivores eat meat which is easier to digest so they have shorter small intestine Herbivores have longer intestine than carnivores because the digest cellulose which is a very hard material so it takes more time for them to digest the food whereas in carnivores,they digest simple material so they are in no need of having a longer intestine |
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| 65352. |
What is the valance and no of electron s of groups 18 |
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Answer» 18 valancy in Argon it a nobal gas. Valency is the measure of the combining capacity of atoms or molecules. Therefore, it is the capacity of an atom of a single element to react and combine with particular numbers of atoms of another element.All the noble gases are arranged in column 18. These elements are inert and have valency 0. |
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| 65353. |
Describe fission and regeneration type of asexual reproduction (2 marks ) |
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Answer» Fission means dividing of parent cell into two or more parts. It is of two types binary and multiple fission. Amoeba is an example of binary fission and plasmodium is an example of multiple fission. Regeneration means if any part of an organism is cut down and it grows with that part fully known as regeneration. Example Planaria. Fission: Fission means division. During asexual reproduction, the parent cell divides into two or more cells. Unicellular organisms show different patterns of cell division according to their cell structure. For example, an amoeba can divide itself into two at any plane but the division in euglena is longitudinal.Fission can be of two types, namely, binary fission and multiple fission. In binary fission, parent cell divides into two equal halves called daughter cells. Daughter cells are identical to each other and to their parent cell. Organisms like the amoeba, bacteria, euglena, etc., exhibit binary fission.Regeneration: When a lizard loses its tail, it grows a new one. This is known as regeneration. In many organisms, there are specialized cells, which can differentiate and grow into a new organism. Organisms like hydra and planaria also show regeneration. In these organisms, when the cell divides into numerous pieces, each piece proliferates and differentiates to regenerate new organisms.\xa0 |
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| 65354. |
What is the name of catalyst in oxidation reaction |
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Answer» alkaline KMnO4 (potassium permagnet) or acidic K2Cr2O7 (potassium dichromate) potassium permanganate Nickel or palladium both can be used |
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| 65355. |
Reactivity series formula |
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Answer» Hey Gaurav Seth thanks for the kedarnath........ Trick. I don\'t know about it.. It will help me and my friends. Once again thank you. There is no formula for reactivity series .There are some tricks to remember that . Like\xa0Kedar\xa0Nath\xa0Ca\xa0Mali\xa0Aloo\xa0Zara\xa0Fike\xa0Sne\xa0Pkata\xa0Hai\xa0Cyuki\xa0Har taraf\xa0AlagAuloo\xa0Pdta hai "\xa0 ( Bold Letters in Most Cases Represent Symbols of Metals/Elements )1) Kedar - K -\xa0Potassium2) Nath - Na -\xa0Sodium\xa03) Ca - Ca -\xa0Calcium4) Mali - Mg -\xa0Magnesium5) Aloo - Al -\xa0Aluminium6) Zara - Zn -\xa0Zinc7) Fike - Fe -\xa0Iron8) Se - Sn -\xa0Tin9) Pkata - Pb -\xa0Lead10) Hai - H -\xa0Hydrogen11) Cyuki - Cu -\xa0Copper\xa012) Har - Hg -\xa0Mercury13) Alag - Ag -\xa0Silver\xa014) Auloo - Au -\xa0Gold15) Pdta - Pt -\xa0Platinum\xa0 Is there any formula for reactivity series.... ? whaattttt In chemistry... |
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| 65356. |
How to improve my score in science i am getting less marks in science.please suggest me. |
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Answer» Watch the nature and your surroundings then you will be able to answer most of the questions. Try experimenting the activities if possible. Just understand concepts and be confident on ur answers and if u dont know the answwr then think it with deepness in your mind and brain |
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| 65357. |
Why HNO3 (Nitric acid) is always use dilluted?? |
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Answer» But in industries it is also used dilluted why?HCL is also corrosive but it is used Concentrated sometimes in industry??? HNO^3 is always used in dilute form because it is a corrosive acid if it comes in contact with our skin it gives severe burns.Therefore HNO^3 is used in dilute form. Plzz answer this question |
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| 65358. |
What is a double circulation? |
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Answer» A circulatory path is a path taken by the blood, wherein it travels throughout the different organs of the body through arteries and veins. In humans, it is a closed circulatory system that exists, as blood flows in closed blood vessels. The circulatory system is responsible for the transport of gases, nutrients, waste products etc.Double circulation is the most efficient way of circulation. Here, in humans, the four-chambered heart, arteries, veins, and capillaries all have a vital role to play. Blood gets pumped out of the heart. This blood goes to different organs and then blood again comes back to the heart. All this happens in a very systematic way through the different arteries and veins carrying oxygenated and deoxygenated blood. It is a The flow of blood twice through heart is known as double circulation. |
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| 65359. |
What kind of image do a convex lens represent ?? |
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Answer» Image is enlarged, virtual and erect. 5 real and 1 vertual Mostly real image and once formed virtual image |
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| 65360. |
surgical method in birth control easy language |
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Answer» Surgical method is the second best method to control child birth in this method the fallopian tube in females is blocked or in mens vas deference is cut or blocked by which egg will not fertilize and pregnancy will not take place or you can also use copper T or the sperm killing cream on ****** before intercourse and the best method is barrier method ( condoms ) To cover pichkari with rubber |
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| 65361. |
In which year did the ganga action plan come into being |
| Answer» In India 14 Jan ,1986. | |
| 65362. |
Is vomit a waste product from our body? |
| Answer» No it is undigested food | |
| 65363. |
Do you believe in Evolution Theory of Charles Darwin? |
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Answer» Explain pls Yes |
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| 65364. |
What is the formula of chloroform |
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Answer» Ch cl3 I think it\'s CHCl3 CH3cl |
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| 65365. |
why do we stars twinkle |
| Answer» Due to refraction | |
| 65366. |
Define soap |
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Answer» Soaps are Na or K long chain of carboxylic acid which is completely soluble in water. Thanks Soap is a water soluble sodium salt or fatty acid. It is made from fats and oils chemically with strong alkali.. |
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| 65367. |
What is aques solution |
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Answer» A solution which is soluble in water in called aqueous solution Aqueous solution is solution in which compound is dissolved in water.. Nahi aamjhe bhai The solutions which water is known as aqies solutions. |
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| 65368. |
Can we cure colour blindness? |
| Answer» Colour blindness is not be treated by any methods/treatment if it is caused by another reason it may be treated.. | |
| 65369. |
What is the process of elctrolysis |
| Answer» | |
| 65370. |
What is Antipodal cell? |
| Answer» It is the cell found in ovary of reproductive flower it helps in the nourishments of the future embryo. | |
| 65371. |
What is chromosome? |
| Answer» Chromosomes are thread-like organized structures located inside the nucleus of both animal and plant cells. Each chromosome is made of the combination of proteins and deoxyribonucleic acid (DNA).\xa0Chromosomes basically control all the activities of a living cell. DNA present on the chromosome not only carries most of the genetic information but also controls the hereditary transference.Chromosomes are essential for the process of cell division, are responsible for replication, division, and creation of daughter cells which contain correct sequences of DNA and proteins.Chromosomes are often called as the \'packaging material\', because it tightly holds the DNA and proteins together in the eukaryotic cells. | |
| 65372. |
Definition of catalyst |
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Answer» A catalyst is a substance which speeds up or slows down a reaction without taking part in it and without losing its shape or changing itself. A catalyst can also be biological and these biological catalysyt are enzymes. it is a substance which slows or increases the speed of reaction without changing itself or including in the reaction Those metals which increase the speed of reaction without taking part in reaction |
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| 65373. |
Explain how plants get nitrogen and other minerals? |
| Answer» | |
| 65374. |
Which publication sample paper is most helpful for class 10 science?? |
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Answer» Evergreen Arihant and oswal Rohit oswal Oswaal or arihant |
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| 65375. |
What is slaked lime , quick lime and lime stone |
| Answer» CaO(s)+H2O gave rise toCa(OH)2(aq)(Quick lime). ( Slaked lime)AndCaCO3(s)gave rise to CaO(s)+CO2(g)(Limestone). (Quicklime)Limestone commonly known as marble also. Calcium oxide is called quicklime or lime. Calcium hydroxide is known as slaked lime. | |
| 65376. |
In formation of Rainbow , Why there is internal reflection? |
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Answer» Because the degree maked by tha light rays is more than 90°so the light return with T.I.R (total internal refraction) Their is internal reflection because all the working in atmosphere |
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| 65377. |
Role of ciliary muscle |
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Answer» Cillary muscles hold the eye lens in its position. When these muscles are relaxed, the lens becomes thin and its focal length increases. This enables us to see distant objects clearly. When we look at nearby objects, these muscles contract. As a result, lens becomes thicker and its focal length decreases. This enables us to see nearby objects clearly. Controls the size of pupil |
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| 65378. |
Flowering plants reproduction |
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Answer» By pollination :::In the process of pollination, the stigma of one flower go to the anther of another flower through agents such as air , water, birds, etc. And pollination is of two types ( very important) Cross pollination and self pollination.. The reproduction take pace when stigma go to the anther of another flower |
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| 65379. |
What are the functions of the mid-brain and hind-brain? |
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Answer» Thanks yogita I was also not getting this question Hind brain : It has three parts:1. Cerebellum : Controls posture and balance. Precision of voluntary action e.g., picking pen.2. Medulla : Controls involuntary actions e.g., blood pressure, salivation, vomiting.3. Pons : Involuntary actions, regulation of respiration. Mid Brain: The midbrain connects the forebrain and the hindbrain. It acts as a bridge and transmits signals from hindbrain and forebrain. It is associated with motor control, vision, hearing, temperature regulation, alertness.Hind Brain: It is the control centre for visceral function.As a result, this part of the brain plays a role in controlling the heart rate, breathing, blood pressure, sleep and waking up functions etc. The hindbrain has three parts, namely – medulla oblongata, pons and cerebellum. |
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| 65380. |
what is diopter |
| Answer» 1 dioptre is SI unit of the power of a lens whose focal length is 1 metre. It is denoted by the letter D. Thus 1D = 1 m-1. Simply, when focal length ‘ f ‘ is expressed in metres, then, power is expressed in dioptres. The power of a convex lens is positive and that of a concave lens is negative. | |
| 65381. |
What is the difference b/w bond and covalent bond |
| Answer» \tIonic bondsCovalent bonds\xa0Ionic bond is formed by the transfer of electrons from one atom to another atom. It is also known as electrovalent bond.Covalent bond is formed by the sharing of valence electrons between atoms of similar electronegativityOccurs between a metal and a non-metalOccurs between two non-metals.Ionic bonds do not have definite shapeCovalent bonds have definite shapeThey exists in solid state at room temperatureThey exist in liquid or gaseous state\xa0at room temperatureThey have high boiling and melting pointsThey have low boiling and melting points.\t | |
| 65382. |
How rainbow is form |
| Answer» A rainbow is a natural spectrum appearing in the sky after rain .When the ray of sunlight is passing through the water droplets then refraction process occurs . Water droplets works as A prism .due to the dispersion of the light and internal refraction the seven colours split from sun ray and reaches the observer\'s eye | |
| 65383. |
Why the rainbow is curve? |
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Answer» Who are you. A rainbow is not actually shaped like a semicircle or an arc; that is simply the shape that we see. In fact, a rainbow is a circle, but we can’t see the full shape because the horizon cuts off the lower half. However, if you were flying high enough, without any disturbance, then you would be able to see a full rainbow. |
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| 65384. |
Why do we need to keep one prism erect and one prism inverted to recombine vibgyor into white light. |
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Answer» To get the light the original colour we place the two prisms inverted since one prism will diverge the light rays and the other inverted prism converge light rays to form the original lighthere how it works the colours diverges due to the differences in wavelengthin the blue light divergence the most in the first prism is it is the least wavelength and the red light diverges the least from the top small part since it has a longer wavelengthnow keeping the prism inverted we are incidenting the red wavelength into the thicker part which means the red light will bend more than the blue light which is incident on the thinner part of the second prism that is why the 7 rays convert again to form the original wavelength of light To get the white light we place the two prisms one erect and one inverted since one prism will diverge the light rays and the other inverted prism converge light rays to form the white light. |
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| 65385. |
Why does sodium chloride is soluble in water and not in kerosene |
| Answer» Nacl is souable in water where as kerosene does not souable in water because:-1. Nacl dissociate in water and change of ions take place in water.2. Nacl is an ionic molecule 3. Kerosene does not have +ve or -ve ions id does not dissociate. | |
| 65386. |
What do you mean by thermit reaction ?? |
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Answer» The reduction of a metal oxide to form metal by using aluminium powder as a reducing agent is called a thermite reaction. It is an exothermic reaction in which a large amount of heat is evolved. This reduction property of aluminium is used in thermite welding for joining the broken pieces of heavy iron objects like girders, railway tracks or cracked machine parts. Reactions in which heat is produced or oxides are formed are thermite reactions. |
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| 65387. |
Another name of hidden reproduction. |
| Answer» Cryptogams | |
| 65388. |
Yrr plzz answer de do koi to plzz?? |
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Answer» Pranjul ek bar meri is post ki timing bhi dekh lete But anyways thanks for helping me ?? De to diya |
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| 65389. |
Define one diopter of power of lens |
| Answer» 1 dioptre is SI unit of the power of a lens whose focal length is 1 metre. It is denoted by the letter D. Thus 1D = 1 m-1. Simply, when focal length ‘ f ‘ is expressed in metres, then, power is expressed in dioptres. The power of a convex lens is positive and that of a concave lens is negative. | |
| 65390. |
What is the balanced equation of the photosynthesis process? |
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Answer» 6CO2+12H2O---(chlorophyll and sunlight )-----C6H12O6(glucose )+602+H20 6CO2+12H2O----->C6H12O6+6O2+6H2O |
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| 65391. |
Hhs |
| Answer» | |
| 65392. |
Mendlef preodic table |
| Answer» | |
| 65393. |
why did mendel choose only pea plants for his experiments? |
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Answer» Bcoz it undergo reproduction process Because it shows verious change1.Availability of detectable contrasting traits of several character. 2.Short life span of the plant.3.Large number of seeds produced.4.Reproduction process is very fast. Because pea plant generate many offsprings Because pea plant had a number of clear cut differences which were easy to tell apart. 1.Many variety were available in alternative forms of a character 2.Varieties were available in pure form that bred true3.Peas were normally self pollinated but self pollinated can be prevented by removing corresponding reproductive parts of the flower so could be cross pollinated also 1 because of its contrasting characters 2 short life cycle 3 it is easy to grow |
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| 65394. |
What is the colour of cupric oxide? |
| Answer» Black | |
| 65395. |
which type of chemical compound found in citrus fruits ? |
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Answer» Citric acid.For example -lemon , orange. Citric acid |
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| 65396. |
What are the differences between arteries and veins |
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Answer» The arteries and veins differ each other in the following ways:(1) all arteries except Pulmonary artery carries oxygenated blood whereas all vein except Pulmonary vein carries deoxygenated blood.(2) the internal wall of arteries are thicker and stronger than that of veins as the pressure of blood is higher in arteries as compared to veins. Arteries carry oxygenated blood except pulmonary artery . They have ability to dilate . They do not have valves . For eg.aorta etc..Veins carry deoygenated blood except pulmonary vein. They do not dilate . They have valves . For eg.venecava(superior and inferior). |
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| 65397. |
Why reproduction is necessary for our life? |
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Answer» To the variation in the new species To continue the survival of different species on the earth that is why reproduction is neccessary. To continue the species on earth and also for better survial on earth with changing environment |
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| 65398. |
Mgcl is salt or not |
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Answer» No it is a precipitate or double displacement No it is a percipitate No it is a precipitate |
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| 65399. |
What is flagellum ? |
| Answer» a slender thread-like structure, especially a microscopic whip-like appendage which enables many protozoa, bacteria, spermatozoa, etc. to swim. | |
| 65400. |
What is the difference between character and tratis? |
| Answer» A character is a heritable feature that varies among individuals. An example would be flower color.A trait is a variant for character, such as white or purple colors for flowers. ... Traits are parts of a persons character, i.e. traits such as happy, friendly, humourous can be part of an agreeable character. | |