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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.
| 64851. |
What is focal lenght? |
| Answer» The length between pole and focus | |
| 64852. |
Why parallel ray to the principle axis of concave mirror pass through focus |
| Answer» | |
| 64853. |
What is the main difference betn puberty and adolesence |
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Answer» Thanks dear \tPuberty is the stage during which the immature reproductive system in boys and girls matures and becomes capable of reproduction. It is related to the physical changes.\tAdolescence is period of mental and emotional changes which boys and girls experience while gaining sexual maturity. |
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| 64854. |
What type of corrective lens is used for presbyopia |
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Answer» Convex concave lens Presbyopia is the defect of eye in which a person cannot see further as well as nearer objects clearly. This defect of vision commonly occurs to old people because of the:1. weakening of the ciliary muscles.2. reduction in the flexibility of the eye lens.This type of defect can be corrected by using bi-focal lenses. A bifocal lens consists of both convex lens (to correct hypermetropia) and concave lens (to correct myopia). |
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| 64855. |
What is the function conc. H2SO4 in the formation of ethene from ethanol? |
| Answer» | |
| 64856. |
What is difference between convolant bond and ionic bond? |
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Answer» Covalent bond: Sharing of electron between two atom is known as covalent bond,Ionic bond: Transfer of electron one atom to another atom is known as ionic bond.☑ \tCovalent BondsIonic BondsFormed between two non-metalsFormed between a metal and non-metalHas definite shapeDon not have definite shapeChemical bonding between two non-metallic atomsElectrovalent bondsLow melting pointHigh melting pointContains hydro chloric acid and methaneContains sulphuric acid and sodium chlorideLow boiling pointHigh boiling pointGaseous or liquid in stateSolid state.\t Covalant bond is formed by sharing of electrons Whereas ionic bond is formed by tranfer of electrons between metal and non matal |
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| 64857. |
Name one disease caused due to deficiency of hormone other than goitre |
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Answer» I did xE, lthxoccic lzi Which hormone |
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| 64858. |
What is axis? |
| Answer» | |
| 64859. |
Why carbon compounds are poor conductor of heat? |
| Answer» Carbon compounds are poor conductor of heat because the carbon atom do not have free electron which acts as a conduction band | |
| 64860. |
Why food cans made by low reactive metal? |
| Answer» So the metal cannot react with acids and bases in food | |
| 64861. |
What chemical process is use for obtaining a metal from its oxide? |
| Answer» By reduction method | |
| 64862. |
Why metal react with nitric acid then does not evolve hydrogen gas? |
| Answer» Beacause nitric acid is an oxidizing agent so as soon as the hydrogen produces nitric acid oxidises it to form water(H2O) | |
| 64863. |
Write the process of farming oxide of magnesium and aluminium? |
| Answer» Magnesium + oxygen = magnesium oxide. Aluminium + oxygen = aluminium oxide | |
| 64864. |
Middle reactive element react with water or not?Why? |
| Answer» They react with water because they are more reactive than hydrogen gas so they reduces the hydrogen gas of water to hydrogen atoms. | |
| 64865. |
Why is the sodium kept immerse in kerosene oil? |
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Answer» Because sodium react with oxygen so vigorously so that they catch fire. Sodium is a very high reactive metal which can react with atmospheric oxygen and start burning but in kerosene it does not react with atmospheric oxygen. |
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| 64866. |
IF iodine is insufficient in ones diet what might be the deficiency disease and it\'s symptoms |
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Answer» Goitre .... Goitre . It has no symptoms. It causes sweling up of neck region . Rarely coghing and sour throat appears in the case. |
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| 64867. |
what is an allele |
| Answer» each of two or more alternative forms of a gene that arise by mutation and are found at the same place on a chromosome. | |
| 64868. |
Why baking soda is used in soda-acid fire extinguisher |
| Answer» | |
| 64869. |
why is more concentrated yellowish urine excreted in summer |
| Answer» Their is loss of excess amount of water from our body, therefore the amount of water available in our body is less. Therefore. The urine is concentrated. | |
| 64870. |
Which process is most important to stay life on earth |
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Answer» Wrong ans Nutrition, respiration, excretion, transportation, growth, movement, and reproduction all are necessary Respiration |
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| 64871. |
Write an example of carbon compound formed withi)chlorineii)oxygen |
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Answer» Ccl4 and co2 1 CHCl3 Ch3cl and Ch3o CCl4 and carbon monoxide, carbon-dioxide 1 Ccl4 and co2 |
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| 64872. |
What is peripheral nervous system & its functions plz |
| Answer» | |
| 64873. |
How do we prepare alcohol |
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Answer» Ethanol can also be manufactured by reacting ethene (from cracking crude oil fractions) with steam. A catalyst of phosphoric acid is used to ensure a fast reaction. Ethanol is the only product. This is a continuous reaction - as long as ethene and steam are fed into the reacting vessel, ethanol will be produced. Sugar cane |
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| 64874. |
Why is regeneration in planaria or Hydra considered as reproduction |
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Answer» It ivolves in new orgnism Because when planaria or hydra regenerate they give rise to many imdibiduals just like reproduction |
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| 64875. |
What are the advantages of variations? |
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Answer» It increases the chances of survival of organism... Its fact that nature selecr the fittest one so if there is no variation then no chances of survival. Ex dinasurs.... It may discover of new species 50 50 |
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| 64876. |
Define chemical and physical change |
| Answer» Physical change : The process in which no new chemical substance is formed is called physical change .For example - melting of iceChemical change : The process in which original substance looses its nature and identity and form a new chemical substance with different properties is called chemical change .For example - Rusting of iron | |
| 64877. |
Does the concept of spore formation in Rhizopus in syllabus |
| Answer» Yes | |
| 64878. |
What are limitations of mendeleev law of periodic table |
| Answer» Here are limitation of mendleev periodic tableIt has kept hydrogen in alkali metal as increasing mass but hydrogen also reflects nature of halogensNo reason for sub groups in periodHe kept isotope of an element having diff mass in one group only. | |
| 64879. |
Describe the process of digestion food in man |
| Answer» Mouth or Buccal Cavity: The mouth has teeth and tongue. Salivary glands are also present in the mouth. The tongue has gustatory receptors which perceive the sense of taste. Tongue helps in turning over the food, so that saliva can be properly mixed in it.Teeth help in breaking down the food into smaller particles so that swallowing of food becomes easier. There are four types of teeth in human beings. The incisor teeth are used for cutting the food. The canine teeth are used for tearing the food and for cracking hard substances. The premolars are used for coarse grinding of food. The molars are used for fine grinding of food.Salivary glands secrete saliva. Saliva makes the food slippery which makes it easy to swallow the food. Saliva also contains the enzyme salivary amylase or ptyalin. Salivary amylase digests starch and converts it into sucrose.Stomach: Stomach is a bag-like organ. Highly muscular walls of the stomach help in churning the food. The walls of stomach secrete hydrochloric acid. Hydrochloric acid kills the germs which may be present in food. Moreover, it makes the medium inside stomach as acidic. The acidic medium is necessary for gastric enzymes to work. The enzyme pepsin; secreted in stomach; does partial digestion of protein. The mucus; secreted by the walls of the stomach saves the inner lining of stomach from getting damaged from hydrochloric acid.Small Intestine: It is a highly coiled tube-like structure. The small intestine is longer than the large intestine but its lumen is smaller than that of the large intestine. The small intestine is divided into three parts, viz. duodenum, jejunum and ileum.Liver: Liver is the largest organ in the human body. Liver manufactures bile; which gets stored in gall bladder. From the gall bladder, bile is released as and when required.Pancreas: Pancreas is situated below the stomach. It secretes pancreatic juice which contains many digestive enzymes.\xa0 | |
| 64880. |
What is CpH4 |
| Answer» Carboxytetrahydropterin synthase | |
| 64881. |
How many bones are their in Human beings?? |
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Answer» 206 At time of birth-300 bones......on reaching adulthood some bones are fused together and the no. of bones come down to 206 |
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| 64882. |
Which pheomenon is responsible for making the path visible |
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Answer» Scattering Reflection reflection of light |
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| 64883. |
Why the male reproductive system ***** become ocassionaly enlarge and erect |
| Answer» The sperms devlop at a temperature of 3°c lower than the normal body temperature .During summer when temperature rises ******* relaxed to lose . During winter when temperature reduces ******* get erect & bring testes close to body to get warmth . | |
| 64884. |
prove that cycloalkyne and alkene are the isomus of each other .explane with example |
| Answer» Both have same strectural formula CnH2n. | |
| 64885. |
What is aqua regia??? |
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Answer» Thank you sooo much it is really easiet answer Aqua regia is a solution of two strong concentrated acids ie hydrochloric and nitric acid(HCl and HNO3) in ratio 3:1 it is a fuming liquid one of few chemicals that can dissolve gold and platinum |
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| 64886. |
What is the unit of electic energy? Define it |
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Answer» The unit of electric energy is AMPERE. When a culum charge flows for a second then the current is known as Ampere. ??? Unit ia amphere is deefined as amount of current flowing in a elictrical circuit in a unit time |
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| 64887. |
Different between mass and weight |
| Answer» Mass is a fundamental property which same for a body anywhere whereelse weight is measured in newton and is force experianced by a body in a gravitational field it changes with planet | |
| 64888. |
Why reproduction is important? |
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Answer» Nope, Reproduction is maintain the continuity of life of species. It plays a very important role in increasing population Nope, one can just leada healthy life without it. It is just to matain the species and not to lead way for its existence. |
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| 64889. |
Describe mendels law |
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Answer» Mendel\'s given has three principle or law : first lawof dominance , second law of segregration or law of purity of gametes ,third law of independent assortment.Law of dominance: (TT) ( tt) By cross pollination we get Hybrid tall plant (Tt) Law of segregration: (TT) (tt) (Tt) We get ( TT) ( Tt ) (Tt) ( tt)Law of independent assortment: 9:3:3:1 By first cross pollination then self pollination in round yellow seeds round green seed wrinkled yellow seed wrinkle green seed . A principle in genetics:hereditary units occur in pairs that separate during gamete formation so that every gamete receives but one member of a pair is called also law of segregation. |
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| 64890. |
Define hatroatom |
| Answer» Hetroatom is group of molecule having atoms of different elementEx water H2O | |
| 64891. |
Suffix of carboxylic acid (COOH) |
| Answer» \'Oic acid\' is the suffix which is used for carboxylic acid... | |
| 64892. |
Q. Add notes on transport in plants1. Root pressure theory 2. Transpirational pull theory |
| Answer» Root pressure is the osmotic pressure in the cells of the root that causes the cell sap to rise through the stem to the leaves. It occurs in the xylem under the conditions of low transpiration or excess soil moisture.Transpiration pull is a major factor governing sap transport in the xylem. this pull is exerted on the water column in the xylem vessels. the pull is generated due to transpiration of water from the surface of the leaves. | |
| 64893. |
Difference between ac and dc generator |
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Answer» Ac generator have two full slip ring and dc generator have one half commutator Ac is alternate current and dc is direct current Ac is known as alternate current and dc is known as direct current. abhi ye chapter study nhi kiya... |
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| 64894. |
Why star is twinkle. |
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Answer» Star twinkle because of atmospheric refraction and when the light comes from the star enters in our earth atmosphere the it bent toward the imaginary line i.e normal and another reason is earth has different layers of different densities. Due to atmospheric refraction. Between earth and star there are several layer of air some are hot and some are cold which work as rarer and denser medium due to which star appears to twinkle |
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| 64895. |
Why we only need oxygen from gases |
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Answer» Because heamoglobin of blood can capture only oxygen We need only oxygen because it help us to break the food particle which we consume Hi |
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| 64896. |
Why earth only exists gravitational force |
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Answer» Earth is a mass body and every mass body in the universe attract other and due to this gravitational force come into existence.... Earth graviation is called gravity. The gravitational force does not exist only in earth every planet has its own gravitational force some have more others have less |
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| 64897. |
What is autotropic. |
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Answer» Autotrophic organisms are the ones which make their own food ,for example plants,which prepare their own food in the presence of sunlight. Your answer is here brooo*An autotroph or producer, is an organism that produces complex organic compounds from simple substances present in its surroundings, generally using energy from light or inorganic chemical reactions. They are the producers in a food chain, such as plants on land or algae in water. |
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| 64898. |
Why corbon dioxide is call green house gas? |
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Answer» Because it traps uv rays and does not let it escape into space Because it can trap solar radiations |
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| 64899. |
Which acid is known as king of acid? |
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Answer» No the answer is hydrochloric acid H2SO4 sulphuric acid |
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| 64900. |
Give name of Amy two higher homologous of methane |
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Answer» Gogkgkvkvkgigkgigogogi Ch3ch2ch2ch3 |
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