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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.
| 67401. |
What is balancing equations |
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Answer» A balanced chemical equation mean no of atoms of each elements present on the product side is equal to the reactant side. Balance equations are the equations that prove the law of concentration of mass.... Making equal no. atoms of various elements in reactant and product to satisfy law of conservation of mass. |
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| 67402. |
Describe female reproductive part in human beings |
| Answer» Refer your NCERT book...☺️ | |
| 67403. |
Who coined the term genes? |
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Answer» Wilhelm Johanssen coined the term gene Wilhelm Johannsen |
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| 67404. |
Scientist who discovered magnetic effect of current ? |
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Answer» Hans Christian oersted.. Oersted discovered magnetic effect of current... |
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| 67405. |
Importance of PH in everyday life?? |
| Answer» Refer ncert usme diya h | |
| 67406. |
What do you mean by a solar cell panel ? |
| Answer» Solar cell panel is a device which is used to covert solar energy directly into electricity. A large number of solar cells are combined in an arrangement called solar panel ............. | |
| 67407. |
Give reason why atom is electrically neutral but still it has a tendency to from an ion |
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Answer» An atom is electrically neutral due to the equal numbers of electrons and protons.Every atom tries to complete its octet (or duplet) to gain stability. Its tendency to lose and gain electrons enables it to form ions. Because number of electrons and protons are equal in number and both have opposite charges.????? |
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| 67408. |
What is the balanced chemical reaction |
| Answer» A balanced equation is an equation for a chemical reaction in which the number of atoms for each element in the reaction and the total charge are the same for both the reactants and the products. In other words, the mass and the charge are balanced on both sides of the reaction | |
| 67409. |
Types of chemical reaction |
| Answer» There are five type of chemical reactions 1 . Combination2 . Decomposition3 . Displacement4 . Double displacement5 . Oxidation and reduction | |
| 67410. |
Why Does the colour of copper sulphate solutions change when iron nail dipped in it |
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Answer» Because of displacement reaction Because Copper is displaced by iron. It is because iron is more reactive than copper and hence, iron displaces copper from its solution. Fe + CuSo4 ➡ FeSo4 + Cu |
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| 67411. |
Why should magnesium ribon is clean before burning in air |
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Answer» To remove its oxide layer i.e.,magnesium oxide which prevent its from further corrosion and also from reacting When magnesium is exposed to open air then a top layer is converted into oxide or carbonate. Hence, It is cleaned before burning. |
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| 67412. |
write one method to induce current in a coil? |
| Answer» ) Moving a magnet towards a coil sets up a current in the coil circuit, (ii) If a coil is moved rapidly between the two poles of a horse-shoe magnet, then an electric current is induced in the coil. | |
| 67413. |
How many numbers of covelent bond in molecule c³h6 |
| Answer» I guess its propane,\xa0C3H8.The number of covalent bonds in propane are 10, as each hydrogen atom gives rise to a single covalent bond , i.e, 8 ans the 3 carbons have 2 single bonds between them.\xa0 H H H | | |H--C--C--C--H. Therefore there are 10 convenient bonds | | | H H H | |
| 67414. |
what is abiotic factor? |
| Answer» \t\xa0Abiotic FactorsAre they living things?NoExamplesForest fires, water, climate, habitat, soil, mineralsMain categoriesAtmosphere, chemical elements, sunlight/temperature, wind and waterMain typesChemical and physical thingsAffect ecosystems?Yes\t | |
| 67415. |
Difference between antioxidant and oxidising agent |
| Answer» Antioxidants :- Antioxidant is a substance which prevents oxidation. They are actually reducing agents.Oxidizing agent :- The substance which gives oxygen for oxidation is called oxidizing agents. | |
| 67416. |
How is bromine water taste |
| Answer» Saturated compounds will not decolorise bromine water while unsaturated compounds will decolorise bromine water........... | |
| 67417. |
Colour of a solution of potassium permanganate? |
| Answer» Purple | |
| 67418. |
How nuclear waste disposed off? |
| Answer» | |
| 67419. |
How does traspiration help in upward transport of substances?? Reply me fast plz.. |
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Answer» In actively growing plants, water evaporates continuously from the mesophyll cells of the leaf creating a negative pull. The lost water in the mesophyll is replaced by the absorption of water from the adjacent cells. Now water starts to pull through xylem vessels of leaves. Xylem vessels of leaves pulls water from xylem of stem which take water from Xylem of roots. Thus, water flow in a channel. This water channel is held together by cohesion force (force of attraction between water molecule). Adhesion (force of attraction between water molecules and walls of cells) and keeps the water column in the place. When water moves into the xylem, more soil water is drawn in the root. This inward movement will continue until the soil becomes excessive dry. For transpiration pull due to cohesion, adhesion and capillary action |
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| 67420. |
What makes relationship between evolution and traits? |
| Answer» | |
| 67421. |
Write precautions to be taken while identifying different parts of an embryo of dicot seed? |
| Answer» (i) Conditions for the seed germination should be optimum l.e. warmth, moisture, and air.(ii) Care should be taken to separate two cotyledons so that the embryonal axis is intact. | |
| 67422. |
Energy from various sources is considered to have been derived from the sun . Enplain |
| Answer» Yes, I agree with the statement that\xa0energy from various sources is considered to have been derived from the Sun. Sun is the ultimate source of energy. All forms of energy are directly or indirectly derived from the solar energy.\tWind energy:\xa0Due to uneven heating of the Earth’s surface by the sun rays at two different adjoining places, a pressure difference is created and wind is produced.\tWave energy:\xa0Strong winds are generated due to the Sun and the waves are generated by strong winds blowing across the sea.\tOcean thermal energy:\xa0The difference between the water at the surface and the water at a depth in seas and oceans is due to the Sun.\tEnergy from fossil fuels:\xa0Fossil fuels such as coal and petroleum are formed when large plants and ancient creatures are buried deep inside the Earth’s crust under the effect of a lot of pressure and heat.\tSolar energy:\xa0The phenomenon of generation of electricity by light (photoelectric effect) is possible only in the presence of Sun.\tBiomass:\xa0Plants convert the solar energy into chemical energy with the help of inorganic substances such as air and water. These plants are consumed by the animals which produce wastes from which energy is obtained.\tEnergy from flowing water: Water from sea and rivers evaporate and fall at different places of the Earth in the form of snow and rainfall. This water is collected in a dam and when allowed to flow rotates the turbine of the generator and electricity is produced.\xa0 | |
| 67423. |
Reproduction is linked to stability of population of a species .explain |
| Answer» Populations of organisms with well defined places in the ecosystem use their ability to reproduce. The consistency of DNA copying during reproduction is important for the maintenance of the body design features that allow the organism to use the particular niche. Reproduction is therefore linked to the stability of population of species.......... hope it will help yu ?? | |
| 67424. |
Give example of a carbon compound cntaining both ionic and covalent bond? |
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Answer» Calcium carbonate Or calcium carbonate CaCo3 Calcium carbonate is the compound which has both ionic and covalent bonds.In this compound, calcium acts as the cation with the carbonate anion which means they share an ionic bond,while the carbon and oxygen atoms in carbonate are covalently bonded. Calcium carbonate |
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| 67425. |
What is difference between ammonotelic and uricotelic organisms? |
| Answer» Ammonotelism :(i) Excretory waste is ammonia (NH3).(ii) It is characteristic of aquatic animals such as protozoans, sponges, coelenterates, crustaceans,bony fishes andechinoderms etc.(iii) Excess of water is required to eliminate ammonia. It is highly toxic.(iv) Water loss is about 300-500 ml to remove one gram of ammonia.(v) Ammonia is formed in liver cells by the deamination of the amino acids.Uricotelism :1.Excretory waste is uric acid.2. It is characteristic of terrestrial reptiles and insects. All the birds are uricotelic.3.Much less water is needed. Uric acid is least toxic.4.Water loss is about 10 ml to excrete out one gram of uric acid.5.Uric acid is formed mainly from the purines in liver cells. In insects, uric acid is formed in malpighian tubules. | |
| 67426. |
What is endocrine system |
| Answer» Hormones are chemicals that affect a lot of the bodily functions ranging from hunger, reproduction and growth to much more complicated functions like human emotions and behaviour. These hormones are produced in our body through nine primary glands and these glands, along with other organs that provide auxiliary functions make up the endocrine system. | |
| 67427. |
Difference between cobalent & ionic compound |
| Answer» 1-Covalent bond formed by sharing of electron But ionic formed by transferred of electron 2- covalent bond have not charged particle But ionic compound have charged particles | |
| 67428. |
Give reason ionic compound have higher melting point |
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Answer» they also formed strong bond. Because ,ionic compound formed by transferred of electrons and they have charged particles |
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| 67429. |
What is dylisis |
| Answer» Dialysis is primarily used to provide an artificial replacement for lost kidney function (renal replacement therapy) due to renal failure. Dialysis is the artificial process of eliminating waste (diffusion) and unwanted water (ultrafiltration) from the blood. In a healthy man, kidney does this process naturally. Some people may have damaged or failed kidneys which no longer filter toxins from the blood. They do purify their blood through dialysis. | |
| 67430. |
What is dilysis |
| Answer» | |
| 67431. |
Board paper will come easy or not |
| Answer» Its depend on you, how you have studied.. | |
| 67432. |
Wgat is the advantage of ac generator over dc generator |
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Answer» Ac current can easily be converted into dc Less energy is wasted in AC generator overDCgenerator. |
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| 67433. |
What would be the consequences of deficiency of haemoglobin in our body? |
| Answer» Anemia | |
| 67434. |
Can u explain me what is iupse name |
| Answer» Ethyl group, pentane,nitrile,isocanide | |
| 67435. |
Human disgetive system |
| Answer» The human digestive system consists of the gastrointestinal tract plus the accessory organs of digestion. Digestion involves the breakdown of food into smaller and smaller components, until they can be absorbed and assimilated into the body. The process of digestion has many stages. WikipediaLatin: Systema digestorium | |
| 67436. |
Where there is minimum and maximum field strength in solenoid???? |
| Answer» Maximum at middle and minimum at ends | |
| 67437. |
What happens when a mature filament of spirogyra attains considerable length |
| Answer» It under goes fragmentation | |
| 67438. |
What are isomerism |
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Answer» The phenomenon in which the compound have same molecular formula bit different structure☺☺ There are three types of isomerism normal which is straight chain iso structure which is T shape and neo which is + shape Those compound which has same structural formula but different structure example butane has two isomerism normal butane and 2 methyl propane which is called as iso butane. And normal structure is in straight line and iso structure is in T shape Carbon compounds with same molecular formula but different structural formula ... The compounds having same molecular formula but having different structures are called isomer and this process is called isomerism. |
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| 67439. |
Last year board exam solution |
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Answer» 2018 Of which year... |
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| 67440. |
Why metals are sonorous |
| Answer» Becoz metals have the ability of producing ringing sound when hurted by a hammer.... | |
| 67441. |
Name the site of exchange of material between the blood and surrounding cells in human being |
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Answer» Capillaries Capalaries |
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| 67442. |
What is the benifit of residual volume of air in the respiratory process ?? |
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Answer» U have sovled my problem Thankss Residual volume of air provides sufficient time for oxygen to be absorbed and CO2 to be released |
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| 67443. |
What is alkynes |
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Answer» Alkynes are hydrocarbons which consists triple bond between the particles and also they are unsaturated. An unsaturated hydrocarbon in which two carbon atoms are connected by a triple bond Unsaturated hydrocarbons containing one triple bond......... \tThe group of unsaturated hydrocarbons with the general formula CnH2n-2 is known as alkynes.\tAlkynes contain at least one triple bond (one sigma bond and two pi-bonds) between two carbon atoms.\tThe first of the alkyne series is ethyne with the chemical formula, C2H2 (CH≡CH). Ethyne, also known as acetylene, is used for arc welding in combination with oxygen gas, which is known as oxy-acetylene flame.\tAlkynes have less number of hydrogen atoms than that of alkanes and alkenes.\xa0 |
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| 67444. |
Which ions are help in the opening and closing of stomata ??? |
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Answer» Thanks Sahayad, K+ ions......??, dinesh me pdha tha |
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| 67445. |
What is dominant seed |
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Answer» Plant hormones are the hormones which are present in plants..body The dominant seed is the seed tht show his own qualities in the coming generations of the plnts....?☺ What is plant harmones |
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| 67446. |
How to make the isomers???? |
| Answer» See from ncert | |
| 67447. |
What do you mean by double circulation why it is important |
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Answer» When the blood travels twice through the heart it is known as double circulation... HOPE IT HELPS..... Sorry it was pulmonary circulation and systemic circulation In Double circulation blood comes to the heart twice and goes away from the heart two times.It includes pulmonary circulation and double circulation.Double circulation is necessary because it prevents the mixing of blood and helps maintain the body temperature of an organism. |
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| 67448. |
How male reproductive organ enters in female body |
| Answer» Male reproductive organ inters in female bobdy during the time of intercource it\'s inter in ****** due to erectile nature of male reproductive that is penish | |
| 67449. |
How sky appears blue in the sky |
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Answer» Due to atmospheric rafraction. Therefore it scatter and sky appear blue Sky appear blue due to scatering of light when hence blue have a sortest weavelength |
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| 67450. |
Can anyone pls explain me that why is the colour of sun during sunrise and sunset orange red ?☺ |
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Answer» Due to longest wavelengh red does no scatter During sunset and sunrise is because red han longest wavelengh as compair to all light |
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