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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.
| 65451. |
The forest department seminar |
| Answer» | |
| 65452. |
What are the functions of seminal vesicle,prostate gland,cowpers gland and epididymu |
| Answer» Epididymus* | |
| 65453. |
Tell is the prepration of bleching poweder............? |
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Answer» Reaction of slaked lime with chlorine gas it gives calcium oxychloride and hydrogen gas evolve When calcium hydroxide reacts with 2 molecule of chlorine gas it produces calciumoxychloride (bleaching powder)..Ca (oh)2 +2cl--------caocl2 +h2o Ca(OH)2+ cl2->CaOcl2 + h2o |
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| 65454. |
Why do metal reacts |
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Answer» To attain noble gas configuration (completely filled outermost shell) metal reacts because they have the tendency to gain and loose so they share thier electrons to complete their octate this sharing between two metals is known as reaction To complete their octate |
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| 65455. |
Does the parent body exist in multiple fission? |
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Answer» No But two daughter cells are formed in case of binary fission.Im asking about multiple fission No because after fission two daughter cells form called daughter cells |
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| 65456. |
Why HNO3 is always used diluted????? |
| Answer» Because bitnis strong oxidising agent and in conc. Form react with very few compounds | |
| 65457. |
How does fertilizatjon occurs in a flower |
| Answer» The Fertilization Process. Fertilization takes part in the ovary of a female flower. ... After the pollen lands on the stigma, a pollen tube forms, and male reproductive material travels down the style and into the ovary, where it fertilizes an ovule. The ovule becomes a seed, and the ovary becomes the fruit of the plant | |
| 65458. |
Plz give me solution also of all sample papers 2018-19 |
| Answer» | |
| 65459. |
What is difference between etanol and etenoic acid |
| Answer» 1.The functional group in ethanol is -OH alcohol while the functional group in ethanoic acid is –COOH2.Ethanol has sweet odour while ethanoic acid has pungent odour.3.Ethanol does not react with sodium bicarbonate (NaHCO₃) but ethanoic acid reacts with sodium bicarbonate (NaHCO₃) releasing CO2 gas.4.Ethanol does not change the colour of blue litmus paper while ethanoic acid change the colour of blue litmus to red. | |
| 65460. |
What is polar solvent ? And organic solvent?? |
| Answer» Polar solvents\xa0have large dipole moments (aka “partial charges”); they contain bonds between atoms with very different electronegativities, such as oxygen and hydrogen.An organic solvent is a type of volatile organic compound (VOC). VOCs are organic chemicals which vaporize at room temperature.Organic compounds used as solvents include:aromatic compounds, eg benzene and toluenealcohols, eg methanolesters and etherketones, eg acetoneaminesnitrated and halogenated hydrocarbons | |
| 65461. |
Name any four fossilfuels |
| Answer» CoalPetrolFuel oilNatural Gas | |
| 65462. |
How offspring came out in human reproduction |
| Answer» You should read ncert | |
| 65463. |
Mention the position of (i)hydrogen and (ii)isotopes of same element in the modern periodic table. |
| Answer» i. Since hydrogen has e.c. of 1 it has 1 valence electron and valency 1 due to its valency of 1 it has group no. 1 and has only 1 shell it has period no. 1 . Moreover, modern periodic table has principal of increasing at. No due to which hydrogen get its 1st position . ii. Since modern periodic table has principal of increasing at. no and isotopes has same at. no but different mass no due to which isotopes of same element do not need to get seprate position in modern periodic table wheras it was not applicable in other laws of classification. | |
| 65464. |
Why some matel are covered into carrosine |
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Answer» Thank you so much ? ....Am confused in chemistry when am going to try elements reaction am confused can you please help me Because they are very reactive with air (oxygen) |
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| 65465. |
Why is the colour of clouds white? |
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Answer» The other answer is totally wrong.This is due to scattering of light. Because of the atmospheric refraction |
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| 65466. |
What do you mean by potential difference b/w two point is 1W. |
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| 65467. |
Why does calcium starts floating when added to water but sodium and potassium do not ? |
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Answer» Na and k float in water but ca not float in water when ca and water meet hydrogen gas evolve and rise up it stick calcium Calcium floats in water because it does not react so vigorously with water as sodium or potassium does. Hence when bubbles of hydrogen gas is liberated, it sticks to the base of calcium. hydrogen being lighter than water makes calcium float. |
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| 65468. |
Why do the walls of trachea not collapse when there is less air in it ? |
| Answer» When there is less air in the trachea it does not collapse due to the presence of c-shaped cartilage rings which hold the trachea in its place. | |
| 65469. |
Define functional group. |
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Answer» Functional group can be defined as an atom or group of atoms which makes a carbon compound reactive and decides its property. Functional group may be define as atom or group of atom which are responsible for most of the character stick property of chemical compound Functional group is defined as an atom or a group of atoms , present in a molecule which largely determines its chemical properties |
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| 65470. |
A photolytic chemical reaction but not the decomposition reaction |
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| 65471. |
What is symbol for aluminum chloride |
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Answer» AlCl3 AlCl2 Chemical formula for aluminium Chloride isAlCl 3REASON—-Electronic configuration of Aluminium atom is 2,8,3So there 3 electrons in its outermost orbitElectronic configuration of Chlorine atomis 2,8,7 Alcl2 |
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| 65472. |
How your practices are going for boards. |
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Answer» Mee tooo.. going so good?? Nice ,about you Superbbbbb se upprre Nyc and urs .... Good Very well? |
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| 65473. |
Name the plants suggested by mendal for his experiment. what is its scientific name? |
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Answer» Pea plant Scientific name :Pisum sativum Its pea plant , scientific name Pisum Sativum ......... The plants suggested by Mendel for his experiment was the pea plant.Itz scientific name is Pisum Sativum. |
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| 65474. |
How can we identify the group and period of an element without the help of periodic table ? |
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Answer» And if we want to identify the group than the most important property of group is the increase in sheels in it like k than l and so on but the valence electron will be same . Its simple groups can be identified by valency while periods by subshell Ya by its atomic no and properties of that particular element . We can too find the rest of its corresponding group member by adding the magic nos : 2 , 8 , 8 , 18 , 18 , 32 . For example - hydrogen has atomic no 1 so we will add 2 resulting in lithium , which next member of group 1 alkali metals and so on .. Group goes from top to bottom while period goes from left to right . |
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| 65475. |
Experiment of physic |
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| 65476. |
How are the areas of study-evolution and classification - interlinked? |
| Answer» Organisms differ in their form, structure and mode of living. Hence, based on their similarities they should be grouped. The grouping of related organisms helps us in studying their evolutionary relationships. Classification is the division of organisms on the basis of characteristics into groups and sub-groups. | |
| 65477. |
Define power of the lens |
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Answer» Converging abilities of all ray of light is called power of lens Do any of yu please tell me about project file format of social studies Right dudes Reciprocal of focal length of a lens, expressed in meters,called the power of a lens. 1D=1m-1 It is the reciprocal of focal length |
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| 65478. |
Why is variation beneficial to the species but not necessary for the individual |
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Answer» Variation provides a change that is very necessary to maintain a organism niche in a ecosystem but for a individual it may not adapt the variation or may be migrating. During harsh temperature new organism are produced like bacteria 5his help in increasing the population so it is benifical for species |
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| 65479. |
What is refractive index ?What is electrical resistivity? |
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Answer» The force which resist the travelling of electric current in a wire or conductor Refractive index is the ratio of bending of light in 2 mediums |
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| 65480. |
k2so4+h2so4 |
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| 65481. |
Why do star twinkles? |
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Answer» Due to atmospheric refraction Stars twinkle because of turbulence in the atmosphere of the Earth. As the atmosphere churns, the light from the star is refracted in different directions. This causes the star\'s image to change slightly in brightness and position, hence "twinkle." ... Planets do not twinkle the way |
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| 65482. |
Do organism creat exact copies themselves |
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Answer» In asexual reproduction, variations are small but in sexual reproduction, variation are large No Not every organisms create exact copy themselves. But many of them create exact copy |
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| 65483. |
what is polination |
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Answer» The transfer of pollen grains from anther to stigma (of same plant) is known as self pollination. The transfer of pollen grains from anther of one plant to stigma of another plant is known as cross pollination. The trandfer of pollengrain from anther to stigma is known as pollengrain |
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| 65484. |
Name two contraceptive method |
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Answer» Physical and chemical methods. Are types Detailed answer :1) The prevention of pregnancy in women by preventing fertilisation is called contraception.2) Any device or chemical (drug) which prevents pregnancy in woman is called. contraceptive. -3) Physical devices such as condoms and diaphragm (cap) are used. This prevents reaching of sperms to ova for fertilisation.4) Chemicals in the form of pills are induced either orally or inserting into female reproductive organ ******.5) Pills for males kill the sperms and hence are called spermicide.6) The use of intra - uterine device called copper - T, loop, etc. are also very effective in preventing pregnancy.7) Surgical methods of birth control are available for males as well as females.8) In males a small portion of vas deferens (sperm duct) is removed by surgical operation and both ends are tied properly. This method is called Vasectomy.9) In females a small portion of oviducts (fallopian tubes) is removed by surgical operation and the cut ends are tied. This method is called Tubectomy. |
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| 65485. |
is saturated conpound harmful for us |
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Answer» Yes Ya.....so we should try to use more unsaturated fatty acids in oils |
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| 65486. |
how metals displace hydrogen from dilute acids |
| Answer» Let us take an example to explain this statement now example is that when zink react with dil.sulphuric acid then zink sulphate is form and hydrogen gas is liberated. If we now notice that every acid has a molecule of hydrogen that why hydrogen is liberated when dilute acids react with metals | |
| 65487. |
Give a test to differentiate b/w butter and vegetable oil? |
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Answer» Hydrocarbons are colorless. Bromine dissolved in water or trichloroethane solvent forms an orange (yellow/brown) solution. When bromine solution is added to both butter or cooking oil the result is quite different. The butter solution remains orange.As cooking oil is unsaturated compound so it decolorises the bromine as it forms a colourless dibromo- addition product.\xa0Cooking oil + Br2 → Addition product Butter + Br2 → No reactionButter contains saturated fats. Therefore, it cannot be hydrogenated. On the other hand, oil has unsaturated fats. That is why it can be hydrogenated to saturated fats (solids). Hydrogenation |
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| 65488. |
What is a phenotypic and genotypic ratios? |
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Answer» 1:2:1 and 3:1 3:9 |
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| 65489. |
Describe about Tissue culture? |
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Answer» * Tissue culture helps us to produce more copies of same plant with desired characters like big fruits, more fruits, colourful flowers, disease resistance etc.* Tissue culture helps us to produce plants which do not depend on seasonal changes of that area for particular yield.* As seedlings are made available, planting is possible all through the year.* All the plants developed by tissue culture are uniform at size, shape and their yield. They are exact clones which resemble each other.* Time taken to obtain mature crop is very less.* Crops are almost pest and disease resistant.* Tissue culture techniques are cost effective. What is advantage of tissue culture Plant tissue culture is a collection of techniques used to maintain or grow plant cells, tissues or organs under sterile conditions on a nutrient culture medium of known composition. Plant tissue culture is widely used to produce clones of a plant in a method known as micropropagation. Different techniques in plant tissue culture may offer certain advantages over traditional methods of propagation, including:The production of exact copies of plants that produce particularly good flowers, fruits, or have other desirable traits.To quickly produce mature plants.The production of multiples of plants in the absence of seeds or necessary pollinators to produce seeds.The regeneration of whole plants from plant cells that have been genetically modified.The production of plants in sterile containers that allows them to be moved with greatly reduced chances of transmitting diseases, pests, and pathogens.The production of plants from seeds that otherwise have very low chances of germinating and growing, i.e.: orchids and Nepenthes.To clear particular plants of viral and other infections and to quickly multiply these plants as \'cleaned stock\' for horticulture and agriculture. |
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| 65490. |
Write kepler\'s law with suitable diagram |
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| 65491. |
In what principle does motor work |
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Answer» The basic principle of an electric motor is that it converts electrical energy into mechanical energy. According to Flemming\'s left hand rule The index finger, middle finger and thumb are set to be perpendicular to each other. In this the index finger shows the direction of magnetic field, middle finger shows the direction of current, then the thumb will show the direction of induced force. Fleming left hand rule A motor is an electrical machine which converts electrical energy into mechanical energy. The principle of working of a DC motor is that "whenever a current carrying conductor is placed in a magnetic field, it experiences a mechanical force". |
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| 65492. |
What is the significance of fossils |
| Answer» Fossil are the preserved materials or traces of the past organisms that have lived in the past. Fossils are important in linking all groups of vertebrates in their characters.*Fossils can directly support evolution by acting as evidences.*Some fossils serve as missing link between different groups of vertebrates. e.g. Archaeopteryx serves as a missing link between reptiles and birds.*Based on the evolutionary history of fossils, present day organisms can be studied. | |
| 65493. |
When conc .acid is added to water,wether the process is exothermic or endothermic |
| Answer» Exothermic Since heat energy is released notTaken | |
| 65494. |
Why magnet looses its property on heating or burning? |
| Answer» No | |
| 65495. |
Carbon are able to forn catenation but other atom not why? |
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Answer» Carbon is not the only one with catenation property. Silicon shows it to quite a good extent, sulphur and boron has also been shown to catenate. carbon has highest degree of catenation because:1. high C-C bond energy2. tetravalency (large number of bonds)3. small atomic size hence less diffused orbital please never say that carbon is the only element to show catenation.O in ozone is catenated, Se and Te also show catenation Because carbon makes covalent bonds. |
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| 65496. |
What is the function of rbc,wbc and platelets |
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Answer» Rbc transported signals from one part to brain Wbc help to boost our immunisation and stop to flow of blood in a case of injury RBC\xa0\tTransport oxygen from the lungs to the cells of the body.\tPick up carbon dioxide from other tissues and unload it in the lungs.WBC\xa0\tKills bacteria through the process of phagocytosis.\tThey also release a burst of super oxides that have the ability to kill many bacteria at the same time.\tKills parasites and have a role in allergic reactions.Platelets\tPlatelets are the parts of cells that the body uses for clotting.\tHelps to promote other blood clotting mechanisms. Example: Secrete procoagulants (clotting factors) to promote blood clotting.\tThey secrete vasoconstrictors which constrict blood vessels, causing vascular spasms in broken blood vessels. Wbc fight against the foreign particles entering the body |
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| 65497. |
Anyone tell me the easy way for learning the ray diagrams of mirror and lense??????? |
| Answer» You must learn table given in ncert book | |
| 65498. |
Is zinc reacts with nitric acid? |
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Answer» Ya it can react butt in this case hydrogen gas is not liberated....it is liberated only when nitric acid reacts with magnese and magnesium metals? I am agree with your answer but in an exception case hydrogen is produced. You can see it on class 12 book Yes, but during this reaction hydrogen is not liberated. |
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| 65499. |
Why is mercury isn\'t hot and venes is hottest |
| Answer» Venus has a very thick atmosphere (thicker than Earth\'s), but Mercury doesn\'t. So sunlight that falls on Mercury bakes its surface, but Venus is hotter because the atmosphere doesn\'t let the Infrared radiation out, accumulating the heat. | |
| 65500. |
Show how humidity depend on transpiration |
| Answer» Humidity is the concentration if water vapour in the air. At low humidity there is a lower concentration of water molecules in the air around the leaves. This concentration gradient helps the transport of water molecules from the leaves by diffusion. High humidity means the air around the leaves is already saturated and has a higher concentration of water molecules than inside the leaves. | |