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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.
| 51251. |
What is the difference between cation and anion? |
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Answer» \t Basis Anions CationsDefinitionAn anion may be defined as an atom or molecule that is negatively charged.A cation may be defined as an atom or molecule that is positively charged.Charge TypeNegativePositiveType of ElementNon-MetalMetalType of Electrode usedAnodeCathodeExamplesSulfide, Oxide, Fluoride, ChlorideIron, Lead, Sodium\t Cations are +ve charged ions. But the anions are -ve charged ions Cation is a positive charged ion.Anion is a negative charged ion. |
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| 51252. |
Why are ionic compounds have high meaelting points? |
| Answer» Ionic compounds have high melting points because there is a strong electrostatic force of attraction between the oppositely charged ions and hence a large amount of energy is required to break the strong bonding force between ions. | |
| 51253. |
Why do ionic compounds have high meaelting points? |
| Answer» Ionic compounds have high melting points because there is a strong electrostatic force of attraction between the oppositely charged ions and hence a large amount of energy is required to break the strong bonding force between ions. | |
| 51254. |
Why the colour of a aeroplane is always white |
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Answer» Because it reflects sunlight.. No it\'s not necessary that the color of aeroplane is always white only Even a little child knows that the color of aeroplane is not always white and you can say that the color of aeroplane is white ? Are you okay No no no it is not so.....Even a small child knows it nd u r in metric ohhhh?.... It is not necessary that colour of aeroplance should be white only..... I think u hv never been to any airport and had not seen types of aeroplane thats why u r asking this type of question??......If u want to know its answer go to any international airport u will see a variety of aeroplane there.....Hhhhh?? |
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| 51255. |
Why space is black |
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Answer» The daytime sky is blue because light from the nearby Sun hits molecules in the Earth\'s atmosphere and scatters off in all directions. The blue color of the sky is a result of this scattering process.At night, when that part of Earth is facing away from the Sun, space looks black because there is no nearby bright source of light, like the Sun, to be scattered. If you were on the Moon, which has no atmosphere, the sky would be black both night and day.\xa0Space has no atmosphere and thus nothing for the light to become "scattered" on, and so no colors for you to see. SHANU SHARMA pls don\'t mind it But I think you are really going madWhich questions you telling about are for small kids not for metric students..... |
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| 51256. |
Epididymis is reproductive organ of which organisms |
| Answer» Epididymis:The sperms formed in testes come out and go into a coiled tube called epididymis.Epididymis\tComplex tube like structure in *******\tStores sperms, helps in passage of sperms | |
| 51257. |
Why do we store silver chloride in dark coloured bottels? |
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Answer» Thanks... Silver chloride is stored in dark coloured bottles because it reacts with sunlight and decomposes to form silver and chlorine gas. So to prevent this it is stored in dark coloured bottles.the type of reaction is photolytic decomposition reaction. |
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| 51258. |
R1=4ohm, R2=R3=15ohm,e=10 volt. Calculate equivalent resistance. |
| Answer» Equivalent resistance is 19 ohm | |
| 51259. |
How is food transported in plants? Explain |
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Answer» Through phloem Food is transported by phloem. |
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| 51260. |
What is the use of condom as contraceptive device? |
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Answer» In male how much quantity of sperms are there? Condom are barrier method of contraceptive they are designed to prevent pregnancy by stopping sperms from meeting an egg. They can also protect against STIs if used correctly during vaginal,****, and oral ***. |
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| 51261. |
What are contraceptive devices? |
| Answer» Any device used to to prevent pregnancy including condom, diaphragms etc. | |
| 51262. |
What is chemical change? |
| Answer» A chemical change occurs when one or more substances change into other materials. A chemical reaction involves the formation of new substances with different properties. For example, hydrogen and oxygen react to form water | |
| 51263. |
Assertuon |
| Answer» | |
| 51264. |
In which age womens are capable for pregnancy. |
| Answer» A woman can get pregnant all the while she is menstruating, but her fertility starts declining at the age of 32 and this process fastens as she reached the age of 37. Teenage is the time when a woman is most fertile, which makes teenage, biologically the best age to get pregnant. | |
| 51265. |
Name of gaseous plant harmone. |
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Answer» Ethylene Ethylene? Ethylene is the only gaseous natural plant hormone. It is produced in large amounts by tissues undergoing senescence and ripening fruits. |
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| 51266. |
Difference btw aerobic and anaerobic respiration |
| Answer» \tAEROBIC RESPIRATIONANAEROBIC RESPIRATION\t\t1. Also called oxybiotic respiration.1. Also called anoxybiotic respiration.2. Proceeds in the presence of oxygen.2. Proceeds in the absence of oxygen.3. Occurs in mitochondria.3. Occurs in cytoplasm.4. Complete breakdown of glucose.4. Incomplete breakdown of glucose.5. End-products are carbon dioxide and water.5. End-products are ethyl alcohol and carbon dioxide.6. Large quantity of energy is liberated (38 ATP) from one mole of glucose.6. Small quantity of energy is liberated (2 ATP) from one mole of glucose.7. Normally occurs throughout life.7. Occurs temporarily for short periods.\t | |
| 51267. |
name the property of light to travel in a stright line |
| Answer» The property of light travelling in a straight line is called rectilinear propagation.Two natural phenomena based on the property that light travels in straight lines are as follows:\t\xa0Lunar Eclipse: This phenomenon occurs when the Earth, the Sun and the Moon are aligned in such a way that the Earth comes between the Sun and the Moon. Light from the Sun cannot reach the Moon and is covered by Earth\'s shadow.\t\xa0Solar Eclipse: This natural phenomenon takes place when the Moon comes in between the Sun and the Earth, blocks the sun rays from reaching the Earth and, covers the Earth with its shadow. | |
| 51268. |
World\'s Strongest Acid ??? |
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Answer» Carborane H2SO4 Concentrated hydrochloric acid carborane HCL |
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| 51269. |
What happens when copper powder is heated ? |
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Answer» When the copper powder is heated in a \' china dish\' , the copper powder surface becomes coated with " black colour substance" due to the formation of \'copper oxide\' by surface oxidation. Copper reacts with oxygen in the air upon heating and forms copper oxide . It changes. Into CuO copper oxide which is black in color |
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| 51270. |
Please tell the difference between decomposition and displacement reaction |
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Answer» In decomposition reaction 1 reactant makes an single product eg. A+B- AB .. but in displacement reaction one atom displace other atom Decomposition :A reaction in a single product get decompose into two or more substances. Also opposite of combination reaction . Ex - H2O------->H2 +O2Displacement:A reaction in which a more reactive element displaces a less reactive from its compound . Ex - CuSO4+Fe------>FeSO4+Cu |
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| 51271. |
What is peni.s? |
| Answer» | |
| 51272. |
In how much quantity sperms are present in our body? |
| Answer» During spermatogenesis, your testicles make several million\xa0sperm per day\xa0— about 1,500\xa0per\xa0second. By the end of a full\xa0sperm production\xa0cycle, you can regenerate up to 8 billion\xa0sperm. This may seem like overkill, but you release anywhere from 20 to 300 million\xa0sperm\xa0cells\xa0in a\xa0single milliliter of\xa0semen.\xa0Each\xa0drop\xa0of healthy\xa0ejaculate\xa0(also known as\xa0semen\xa0or “cum”) contains millions of\xa0sperm.\xa0Semen\xa0also contains fluids from the seminal vesicles and the prostate gland. | |
| 51273. |
Suggest 3 ways through which we get to know that the food is rancid?? |
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Answer» Change in smell , change in taste, change in colour Odour of an foodstuff is the most easy way to decide whether the food is rancid.. Change in colour.Change in smell.Change in taste As it makes foul smell when come in contact with metal |
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| 51274. |
Calculate the number of electrons constituting 1c of charge |
| Answer» 6.25×10^25 | |
| 51275. |
is the current across each resistance connected in parallel is same ? |
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Answer» For each resistor in parallel potential diiference is same No , the current across each resistance connected in parallel connection is not the same. The current in each resistor is different than another |
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| 51276. |
What is mirror formula? |
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Answer» 1/v+1/u=1/f 1/v+1/u=1/f 1/u +1/v =1/f |
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| 51277. |
Diagrammatically illustrate the process of utilisation and dugestion of food in amoeba |
| Answer» Amoeba is a unicellular animal, so it doesn\'t have a mouth for ingestion of food. Amoeba ingests the food by encircling it by forming pseudopodia. ... The food digested by digestive enzymes is then absorbed in the cytoplasm by the process of diffusion. While the undigested food remains in the food vacuole. | |
| 51278. |
Propagation of sound |
| Answer» The Propagation of sound. Sound is a sequence of waves of pressure which propagates through compressible media such as air or water. (Sound can propagate through solids as well, but there are additional modes of propagation). During their propagation, waves can be reflected, refracted, or attentuated by the medium. | |
| 51279. |
Why magnesium ribbon is cleaned before burning it in air? |
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Answer» Magnesium ribbon is cleaned before burning because there is a layer of magnesium oxide on magnesium ribbon so that,s why we clean magnesium ribbon before burning to remove that mg oxide layer from mg ribbon To remove the layer of MgO and magnesium Carbonate sometimes To remove the layer Thank you @Harpreet Arora Because to pervent the layer of magnesium oxide which is tormed |
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| 51280. |
what is the role of KOH |
| Answer» Absorbtion of Co2 from. Plan | |
| 51281. |
Why mimosa pudica(touch me not) leaves drop down when touched?Name the type of movement. |
| Answer» Photonasty is the movement of plant parts in response to the light. Seismonasty is the movement of plant parts in response to the touch. The leaves of Mimosa pudica drop down when touched due to seismonasty.\xa0Nyctinasty is the movement of plant parts in the dark or at night. Epinasty is the downward movement of plant parts due to increased growth on the upper surface of plant. | |
| 51282. |
Soaps are different in colour but all give white forms . Why ?????? |
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Answer» Isika you are very intelligent ? This is due the fact that bubbles store within them relatively more air than soap material.Besides the colour of the natural light is white.what we actually see is the reflection of the natural light in bubble , which is white. I don\'t know |
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| 51283. |
In human beings which part cannot burn in fire? |
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Answer» Yes nails ? Nails is the answer of this question No part (because all part are made of tiny particles) |
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| 51284. |
What is lone pair? |
| Answer» A lone pair is the valence electron pair without bonding or withut sharing with other atoms. They are found in the outermost electron shell of an atom, so the lone pairs are a subset of a molecule\'s valence electrons. They can be identified by examining the outermost energy level of an atom\x97lone electron pairs consist of paired electrons as opposed to single electrons, which may appear if the atomic orbital is not full. Electron pairs are therefore considered lone pairs if two electrons are paired but are not used in chemical bonding. Thus, the number of lone electrons plus the number of bonding electrons equal the total number of valence electrons in a compound. | |
| 51285. |
What processes would you consider essential for maintaining life |
| Answer» Life processes such asi. Nutritionii. Respirationiii. Transportationiv. Locomotionv. Excretionvi. Reproductionvii. Sensitivity; are the processes essential for maintaining life. | |
| 51286. |
Give a relation for electric current in terms of electric charge on an electron.. |
| Answer» Electron contains unit negative charge. However in SI system charge of 6.242×10^18 electron is called 1 coulomb. Under the influence of emf, In any conductor, at any cross section, total numbers of coulombs of charge passing per second, is the measure of current in ampere. | |
| 51287. |
Name the main source of energy in self sustained ecosystem |
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Answer» Sunlight Because it only needs the input of sunlight for their enery. Sunlight |
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| 51288. |
Difference between Strong acid and concentrated acid! |
| Answer» A strong acid is one that fully dissociates to form H3O+ ions in aqueous solution, where as a weak acid only does so partially. A concentrated acid, on the other hand, is one that has a very high concentration of H3O+ ions in aqueous solution. | |
| 51289. |
what are the different ways in which individuals with a particular trait increase in a population |
| Answer» The\xa0ways in which individuals with a particular trait may increase in population are:\tthrough natural selection (of variations brought during the course of time)\tby genetic drift (accidental changes in the frequency of some genes in a population)\tby mutation\tby sudden decrease or increase\xa0in the\xa0availability of food during a period of some generations. | |
| 51290. |
What happens to the lactic acid after it gets collected in the muscles. how do we get rid of it?? |
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Answer» After exercise due to lack of oxygen in our muscle cells lactic acid is produced and this causes cramps. We can get rid by hot water A temporary buildup of lactic acid can be caused by vigorous exercise if your body doesn\'t have enough available oxygen to break down glucose in the blood. This can cause a burning feeling in the muscle groups you\'re using. It can also cause nausea and weakness. |
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| 51291. |
Hey Guyz you are use any other app which has best notes. IN this app notes are not clarified |
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Answer» Agr aap book pdhoge toh aur jada better hoga Kon sa !!! ? Edumantra or vedantu |
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| 51292. |
What is meant by destructive distillation of wood |
| Answer» A process by which organic substances such as wood, coal, and oil shale are decomposed by heat in the absence of air and distilled to produce useful products such as coke, charcoal, oils, and gases. | |
| 51293. |
H2+N2->NH3 ( balancing eqution) |
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Answer» C 3H2+N2 > 2NH3 |
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| 51294. |
H2+Cl->Hcl balancing equetion |
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Answer» H2 +Cl2------>2HCl H2 +2Cl-----》2HCl |
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| 51295. |
What is CNS explain it |
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Answer» The central nervous system (CNS) controls most functions of the body and mind. It consists of two parts: the brain and the spinal cord. The brain is the center of our thoughts, the interpreter of our external environment, and the origin of control over body movement Central nervous system include brain and spinal cord . It is the main control centre. |
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| 51296. |
What happens to extra glucose or carbohydrate in an animal body? |
| Answer» Extra glucose in the body is converted into glycogen(a complex carbohydrate like starch)and stored in the liver(a small amount is stored in the muscles as well).This glycogen is converted to glucose when blood glucose level falls. This process helps us to maintain blood sugar levels in between meals.\xa0Sorry but i don\'t know about carbohydrates.Read more on Brainly.in - https://brainly.in/question/1253521#readmore | |
| 51297. |
What are pheripheral nervous system |
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Answer» The peripheral nervous system (PNS) is one of the two major divisions of the nervous system. ... The nerves in the peripheral nervous system (PNS) connect the central nervous system (CNS) to sensory organs (such as the eye and ear), other organs of the body, muscles, blood vessels and glands. · The peripheral nervous system (PNS) is one of two components that make up the nervous system of bilateral animals, with the other part being the central nervous system (CNS). The PNS consists of the nerves and ganglia outside the brain and spinal cord. |
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| 51298. |
What is the process of excretion |
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Answer» The process in which the living organisms remove waste material from their bodies by excreatery organ is called Excretion. Excretion is the process of removal of the waste products present inside the body of an organism The process of removal of waste from our body is called excretion |
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| 51299. |
Hydogen is a metal or non metal??❓ |
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Answer» Non metal Non metal Hydrogen is a non metal It is a non metal It is non metal .....it comes under the category of metal |
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| 51300. |
why do we store silver chorie in a dark coloured bottle |
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Answer» This is done because it undergoes photolytic decomposition reaction when came in contact of sunlight to dissociate into silver metal and chlorine gas. Because when it comes in contact with air, it reacts with it and silver will separate .from ...silver Chloride.... Because when it comes in light it react with light. |
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