Saved Bookmarks
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.
| 44351. |
Why are metals good conductor of electricity where as glass is a bad conductor of electricity? |
|
Answer» Metals carry H+ ions. Therefore it has free ions but glass didn\'t have free ions so glass is a bad conductor They release h + ion because thye cary H+ions |
|
| 44352. |
Name any two contraceptive methods used by human females |
|
Answer» Tubactomy and condoms on ****** Cu t and vascatomy and tubacatomy Cu TDiaphrams |
|
| 44353. |
Differentiate between fission and budding method of asexual reproduction |
|
Answer» Fission: In fission a unicellular organisms divides to from 2 or more organism fission is of two types.Budding: In budding a small outgrowth grows out from the parents organisms and forms a bud .Later ,it is deattached from the parents body and form new individuals.Hydro and yeast reproduce asexually by budding.\xa0 In fission the parent cell is divided into two or more cell .In budding a bud or a new offspring comes out from yhe parrn body and get seperated to form a new indivifual |
|
| 44354. |
Differentiate between soap and detergent? |
|
Answer» Importance and difference between soaps and detergents is as follows:\tSoap is a triacylglyceride derviative (fat) while detergents are often produced synthetically.\tThe head-group of soap a molecule is usually a carboxylate anion while common detergents often use phosphate or sulfate head-groups (ie Sodium dodecyl sulfate).\tSoap\'s effectiveness is greatly affected by the presence of certain minerals in solution such as those typically associated with hard water. Detergents are usually not affected by minerals in solution.\xa0\tSoaps are the sodium salts of long chain carboxylic acids\tDetergents are sodium salts of long chain benzene sulphonic acids\tSoaps are biodegradable while some of the detergents are non-biodegradable.\tSoaps have relatively weak cleansing action whereas; detergents have a strong cleansing action.\tA detergent is a sodium salt of alkyl benzene sulphonate or of a fatty alcohol sulphate. A soap is a sodium or potassium salt of higher fatty acids.\tA detergent is more effective in hard water. Soaps are less effective in hard water. Soap is bio degradable but detergent are not Soap not make scum with hard water but detergent make scum with both Soap:sodium or pottassium salts of long chain carboxylic acidDetergent:ammonia or benzoaye salts of long chain carboxylic acid |
|
| 44355. |
What are the raw materials essential for the purpose |
| Answer» For making our life easy | |
| 44356. |
Not perfect |
| Answer» Hey did u read in kv1 kanchrapara in class 8 and starting of 9 | |
| 44357. |
What is ethanoic acid????? |
|
Answer» It is vinegar Its it not li ok ya or likhu Ii belong to carbozalic acid and it is more acidic than other acid of functional group Acetic acid Ch3COOH |
|
| 44358. |
Most expactied question |
|
Answer» How evolution and classification are interlinked Ncert questions |
|
| 44359. |
What is means of aquous |
| Answer» Semi liquid | |
| 44360. |
Difference between biological magnification and bioconcentration of pesticides |
| Answer» Biomagnification, also known as bioamplification or biological magnification, is the increasing concentration of a substance, such as a toxic chemical, in the tissues of organisms at successively higher levels in a food chain.In biological magnification, pesticides or heavy metals move up the food chain, work their way into rivers or lakes, and are eaten by aquatic organisms such as fish, which in turn are eaten by large birds, animals or humans. | |
| 44361. |
Why do you prefer convex mirror as a plane mirror |
| Answer» Convex mirrors are used as rear-view mirror in vehicles because of the following two reasons:1. A convex mirror always forms an erect, virtual and diminished image of an object placed anywhere in front of it.2. A convex mirror has a wider field of view than a plane mirror of the same size. Thus, convex mirrors enable the driver to view much larger traffic behind him than would be possible with a plane mirror. | |
| 44362. |
Domestic electric circuit? definition. |
|
Answer» \tAt our homes, we receive the electric power supply through a main supply (called mains), either supported through overhead electric poles or by underground cables. One of the wires in this supply, usually with red insulation cover, is called live wire (or positive), the other, with black insulation, called neutral wire (or negative).\tIn India, the potential difference between live wire and the neutral wire is 220 V. At the metre-board of our homes, these wires pass into the electric meter through the main fuse. Through the main switch live wire and the neutral wire are connected to the line wires in the house. These wires supply electricity to separate circuits within the house.\tOften, two separate circuits are used, one of 15 A current rating for appliances with higher power ratings such as Washing machines, geysers, air coolers, etc. The other circuit is of 5 A current rating for bulbs, fans, etc.\tThe wire which has insulation of green colour is usually connected to a metal plate deep in the earth near the house. This is used as a safety measure; especially for those appliances that have a metallic body is called the earth wire, It is a continuous conducting pathway consist of connecting wire, resistance,switch etc. Between the two terminals of battery |
|
| 44363. |
are yar koi heredity and evolution k main points bta do? |
|
Answer» Ncert me jitne question h is lesson ke wo learn krlo Artificial selection,*** determination, monohybrid cross How evolution and classification are interlinked ye wala ab tak bhot baar poocha gya hai 1 heredity and evolution 2 law of dominant, segregation 3 monohybrid and dihybrid cross4 Darwin\'s theory of evolution5 fossil k proof Mat pad 1 no. Ka aayega |
|
| 44364. |
What is nutrition? What is its types? Please tell... |
|
Answer» Thankyou to all.... And specially vanshika Agar apko koi topic clear na ho chapter 1 Mein to aap mujh se puch skte ho Firstly nutrition the process of taking and utilizing the various nutrients is called nutrition. There are two types of nutrition Autotrophic nutrition and heterotropic nutrition. These organism which can make their own food in their own body by the process of photosynthesis, these organisms are called Autotrophs and this process is known as Autotrophic nutrition, examples all green plants. These organism can not make their own food in their own body, they depend other for food, these organisms are called heterotrophs and this process is known as heterotropic nutrition, examples all non green plants and human beings. Now what is nutrients, these ar substance that provides energy to the organisms. They also help in the various activities of body. Nutrition is the basic requirements and the basic characteristics of living organism . It is a very complex process in which the organism takes some essential material from the outside environment , which we call them food . There are two types of nutrition . 1) Autotrophic nutrition 2) hetrotrophic nutrition Nutrition are mainly of two types that is autotrophic nutrition and heterotrophic nutrition.heterotrophic nutrition can be further divided into three parts that is saprophytic, parasitic and holozoic nutrition The process of intake of nutrients by an organism is called nutrition. |
|
| 44365. |
How to detetmine age of fossil |
|
Answer» Age of a Fossil can be determined by the following ways1. Carbon dating method-by detecting the ratio of various isotopes of carbon in fossil.2. Relative method-by determining the age of the different layers of earth in which the fossils are found. The fossils which are near the surface are more recent than the fossils which are deep inside. Relative identity and carbon dating |
|
| 44366. |
Mid brain |
|
Answer» Controls the reflex actions of head, neck and trunk, change of size of pupil etc. It has no furthur division It connect the fore brain to hind brain. It is the portion of CNS associated with vision, hearing , sleep/wake and temperature regulation |
|
| 44367. |
Functions of eye .... |
|
Answer» Enable us to see To make us see our surrounding |
|
| 44368. |
How do fossils form layer by layer ? Explain? |
| Answer» Fossils form layer by layer as the rocks due to evironmental conditions broke into pices and became sand. this time the fossils which is lesser deeper forms much more deeper. as continously this decomposition processes takes place and formation of soil also takes place...fossils form layer by layer. | |
| 44369. |
Write a balanced equation for reaction that can be characterized as precipitation |
|
Answer» Pb(NO3)2 +KI ----> PbI2 + KNO3 Na2So4 + BaCl2 --------- BaSo4+ 2NaCl |
|
| 44370. |
I want name\'s of more plants like touch-me-not plant?? |
|
Answer» There is no plant like this Sorry I was wrong Mimosa pudica is the scientific name of touch- me- not plant I thinkMimosa pudica Pls Answer?anyone?? |
|
| 44371. |
Mendeleev\'s periodic table |
| Answer» The properties of elements are the periodic function of their atomic mass | |
| 44372. |
what is phonation ? |
|
Answer» The production of utterence of speech sound. I too want this answer by the way which chapter is this from |
|
| 44373. |
Propertiesof ethanol |
| Answer» Melting point of ethanol is 156k and the boiling point is 351k | |
| 44374. |
What are the components of brain?write their functions |
|
Answer» Fore brain - it is the main thinking part of the brain where learning thinking takes place Midbrain- it controls the reflex action of neck and trunk Hindbrain- it gas 3 parts 1. Pons- it regulates respiration 2.Medulla- it controla the involuntary actions like vomiting 3. Cerebellum- it maintains the body posture And 118 Pg 117 |
|
| 44375. |
Sign of u,v and f of concave mirror and convex mirror |
|
Answer» And in lens?? U will be everytime - for both concave and convex U is always negativeV in convex is always positive and in concave its negative but when the image formed is virtual and errect then its positive And focal length in concave mirror is negatvie and convex is positive |
|
| 44376. |
What form when bacl mix with naso4 |
|
Answer» Barium sulphate and sodium chloride Baso4+nacl Baso4 and nacl Baso4 + nacl |
|
| 44377. |
name the master gland present in the brain |
|
Answer» Pituitary gland pituitary gland Pituitary gland Pituitary gland Pitutary gland Pituitary gland |
|
| 44378. |
Wht r the factors on which the lateral shift depends.... |
|
Answer» That was in my reference book provided by school.......but no answers Glass slab me refraction hoga aur lateral displacement hogi.. Then it obviously depends on the thickness of the slab From where did you ask it. General knowledge ? But where did you get this?? Thickness of glass slab nd refractive index Thickness of glass slab, angle of incidence and angle of refraction. |
|
| 44379. |
Why are Rennins present in small children not in adults? |
|
Answer» Pehle mere question ka answer do?? What is rennins plz explain |
|
| 44380. |
Principal and wprking of ac and dc generator |
| Answer» | |
| 44381. |
What are bio magnification? |
| Answer» Increase in concentration of harmful chemicals at each trophic level of food chain | |
| 44382. |
Sign conventions |
|
Answer» For concave mirrorV=-ve(real) +ve(virtual)U=-ve(always)F=-ve(always)For convexU=-veV=+veF=+ve Thanks Prefer NCERT Pg no 168 ? |
|
| 44383. |
Is the number of stomata same in the leaves of all plant? Explain. |
|
Answer» It is not measurable wether to say that they are equal in number and it is not possible . No Na Na Na Na No |
|
| 44384. |
What is gangland |
|
Answer» Are you asking for gangue ? |
|
| 44385. |
Define germination.? |
|
Answer» If you know the answer pls answer properly or else no need of answering........... BBg |
|
| 44386. |
Name the protein that helps to muscles to change their shape and size ? |
|
Answer» Thanks Contractile proteins Tell me answer guys ..... Where are you |
|
| 44387. |
Give me question of chapter heredity and evolution that you revised |
| Answer» Refer to questions given in this app | |
| 44388. |
What is Ganga action plan |
| Answer» On 14 January 1986, the former prime minister of India, Rajeev Gandhi launched a programme named the Ganga action plan in order to reduce the pollution of the River Ganga. The main objective or need of this plan was as follows:1) To improve the water quality of the river Ganga.2) Treatment of the domestic sewage, industrial waste, toxic chemicals and harmful pollutants discharged into the river.3) Rehabilitation of soft shelled turtles which may be used for the purpose of pollution abatement of the river. | |
| 44389. |
What is placenta and their functions |
|
Answer» Placenta - A special tissue embedded in the uterus wall with the help of which human embryo gets nutrition from mother’s blood.Function:(1)To provide large surface area for glucose and to pass through mother’s blood to the embryo.(2)The metabolic waste generated by embryo is removed through placenta into mother’s blood.Hope it helps:-) Placenta is a disc shaped tissue in female reproductive system which helps in providing nutrition to the unborn child. Placenta is a dish like a structure that surrounds the embryo around the Mother\'s uterus its function is that it provide nutrition and help in removing of waste material in and out from developing embryo or Child bodies |
|
| 44390. |
Give me question of heridity and evolution that I can write In exam I Am so confused what to study |
|
Answer» Which type of plant mendel used in his experiment?what is the observation in F1 generation ? Fast |
|
| 44391. |
What is Darwin\'s theory |
|
Answer» 1) individual are differ within each other due to vqriation.2) offsprings resemble their parents, they inherited them.3) number of offsprings are more than they suvive.they suffer from predeation and compettion.4) population remain fairly constant in size. within any population there ia natural variation.some individuals have more favourable variations. these variations when accumulated over a long period of time,lead to the origin of a new species....alle these concepts are in darwins theory..bro |
|
| 44392. |
Function of thyoriod |
|
Answer» Thyroid gland release thyroxine hormone which controls the rate of metabolism of carbohydrate, fat and protein Hm book meh h Anshul tumhe iska answer pta h kya Haa bhai mujhe bhi nhi pata tha or mujhe answer bhi janna tha Google assistant se puch k answer nikl liya brother It forms thyroxine hormone which is used in regulating the basal metabolism of body.HOPE IT WILL HELP YOU The thyroid gland is a vital hormone gland: It plays a major role in the metabolism, growth and development of the human body. It helps to regulate many body functions by constantly releasing a steady amount of thyroid hormones into the bloodstream. |
|
| 44393. |
https://youtu.be/AMR5BaKXy-nYThis may helpful to all of you...watch full video |
| Answer» Koi gal ni veerey Mt bta | |
| 44394. |
Explain drawn thoery ? |
| Answer» Charles Darwin wrote his famous book ‘Origin of Species’. He threw new insights on evolution of species. Some salient points of Darwin’s theory are as follows:Organisms have unlimited capacity to reproduce:Organisms can reproduce offspring at a fast pace. This is necessary for survival, because a higher number of offspring ensures that at least some of them could survive. Each organism has to struggle for its day to day survival. For example; a frog lays thousands of eggs at one go. The spawn is released in water and it is left to fend for itself. Most of the eggs are either washed away or are eaten by predators. However, some portion of eggs from the spawn develops into tadpoles. Once again, many tadpoles are eaten up by predators; leaving a few which develop into adults. It is evident, that a large number of eggs is needed to ensure that at least some of them develop into adults. | |
| 44395. |
How to do iupac naming |
|
Answer» https://www.siyavula.com/read/science/grade-12/organic-molecules/04-organic-molecules-03This link will help you By no of carbon and hydrogen International union pure apply country |
|
| 44396. |
Which diagram can be asked from biology? |
|
Answer» Heart ,nephron , neurone budding in yeast ,binary fission in Amoeba ,regeneration in planaria, dihybrid cross. Nephron Neuron, nephron ,female reproductive system and germination of pollen diagrams such as brain...heart..flower parts....female fertilisation have more chance Which diagram has more chances Any from ncert textbook |
|
| 44397. |
Describe the zero group element in breifly |
|
Answer» The Group 18 elements include Helium(He), Neon(Ne), Argon(Ar), Krypton(Kr), Xenon(Xe), and Radon(Rn).\xa0They are referred to as noble gases or inert gases. This means that these elements are chemically inert and do not take part in any reaction. All of these elements occur in a free state in the atmosphere. Apart from Radon, every other noble gas exists in the atmosphere. Inert gas is full they are in group 18 since there octet is complete hence there valency is zero |
|
| 44398. |
What do we understand by MKS CGS |
|
Answer» Thank you anushka Units of measurement of energy in joules.. |
|
| 44399. |
What is Biological magnification?? |
|
Answer» The increase in the concentration of harmful chemical substances in the body of living organism at each tropic level of a food chain is known as Biological magnification Biological magnification often refers to the process whereby certain substances such as pesticides or heavy metals move up the food chain, work their way into rivers or lakes, and are eaten by aquatic organisms such as fish, which in turn are eaten by large birds, animals or humans. Accumulation or increasing concentration of toxic substances or chemicals in the body of an organism.. The process of accumulation of non biodegradable chemicals progressively at each trophic level |
|
| 44400. |
What are the functions of digestive enzymes? |
|
Answer» Digestive enzymes have fifteenth functions which helps in digestion if food. Trypsin is a enzyme that acts on proteins. Digestive enzymes helps in break down of food so that they can be absorbed easily.. Amylase acts on carbohydrates nd lipase acts on fats.ptyalin enzyme converts starch into maltose.. Enzymes present in intestinal juices converts proteins into amino acids ns fats into glycerol nd fatty acids nd helps in complete digestion of food.. All digestive enzymes function. Hcl |
|