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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.
| 58151. |
Describe working of hydrogen bomb |
| Answer» Working of hydrogen bomb: When two light nuclei like hydrogen or it\'s isotopes combine to form a heavy nucleus undergoing the process of fusion, a tremendous amount of energy is released. Hydrogen bomb is based on thermonuclear fusion reaction.The reaction is as follows:2H + 2H →3He + n + energyDegree of temperature and pressure required for the process is really high. The conditions are different.An atomic bomb based on fission of uranium or plutonium is placed at the core of the hydrogen bomb. When atomic bomb is detonated, the temperature of the substance is raised to 107 K in micro seconds. The high temperature gives sufficient energy for the hydrogen nuclei to fuse and release enormous amount of energy which causes destruction. | |
| 58152. |
What happens when SO2 is dissolved in water?And please answer only if u know correctly!! |
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Answer» do you have your personal phone \xa0When SO2 is passed through water, sulphurous acid is formed. The aqueous solution of SO2 turns blue litmus red.SO2 (g)+ H2O(l) ⇌ H2SO3 (aq)Sulphur dioxide Sulphurous acid\xa0 SO2+H2O gives SO3+H2 |
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| 58153. |
How vanaspathi ghee is formed ? |
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Answer» The saturated fats like vanaspathi ghee obtained by the hydrogenation of oli By hydrogenation of vegetable oil in the presence of nickel as catalyst. It is formed by the process of hydrogenation which is performed using a catalyst known as "supported nickel catalyst"....... |
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| 58154. |
Explain the role of DNA copying in reproduction. |
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Answer» DNA copying is necessary for transfer of parental characterstics to the offsprings DNA copying helps in the variation of species. |
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| 58155. |
What happens at the synaps between two neurons |
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Answer» At synapse the nerve ending of a nerve cell converts the nerve impulse into some chemical substance that travels through the gap towards the dendride of succeeding neuron.Absolutely correct!! More detailed answer:Transmission of nerve impulses between two neurons takes plave through the synapse. The axon terminal of a neuron releases specialized chemicals called neurotransmitters. These chemicals travel through the synapse and reach the dendrites of the successive neuron. These chemical messengers cross the synapse and starts a electrical impulse. The electrical signals converted into chemical sets. A chemical energy sets off in the nerve ending to cross the synapse. The information is transferred by electrical signals |
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| 58156. |
How can we say that genes are responsible for the characteristic features of an organism? Explain. |
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Answer» great English mahi ???? great english mahi??? Are u explain it Because genes are carrier of genetic information from parent to offspring |
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| 58157. |
Kis ka science pura complete hogaya |
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Answer» Mera Mera |
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| 58158. |
The pH of the solution is less than 7. What does it indicate. What is the pH of 1MHCI solution. |
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Answer» Acidic It indicate that it is acidic..... It indicates it is acidic...... If it is less than 7 then it is acid .... Ph of hcl is 0-1 |
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| 58159. |
Why is Abscisic acid called as stress hormone |
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Answer» because this hormone is a growth inhibitor not a growth promoter. Because it is the only hormone which inhibits the growth of plant....N also responsible for wilting of leaves |
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| 58160. |
Name the process of loss of water in the form of vapour from the aerial parts of plants |
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Answer» Transpiration Transpiration is that process Its transpiration. ... Transpiration... |
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| 58161. |
Ameba |
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Answer» ??..??... Continue ur ques |
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| 58162. |
Which 2 group of organisms have high energy needs? |
| Answer» Animals... | |
| 58163. |
Which is bigger na or mg why |
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Answer» As s period atomic size decreases from left to right so na is larger than mg Na is bigger bcoz atomic size decreases in going from left to right in a periodic table.... |
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| 58164. |
Why dry hcl does not change the colour of the blue litmus paper |
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Answer» Because when it\'s dry, it do not liberate H+ ions. Colour of litmus paper changes only when it come in contact of hydrogen ions and hydrogen ions produced only when HCl gas comes in contact with water. therefore dry HCl doesn\'t change the colour of blue litmus paper. Dry HCl does not change the colour of the blue litmus paper as being dry they do not liberate H+ ions however aquous soln of HCl does. |
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| 58165. |
What are skeletal equation? |
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Answer» Skeletal chemical equation: A chemical equation which simply represents the symbols and formulas of reactants and products taking part in the reaction is known as skeletal chemical equation for a reaction.For example: For the burning of Magnesium in the air, Mg + O2 → MgO is the skeletal equation. The chemical which are not balanced.... I mean whose no. of atoms of reactants nd products aren\'t equal... Unbalanced chemical eq....where there is unequal no of atoms....both side.... Unbalanced equation |
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| 58166. |
Presence ofWhich group of bacteria indicate that water is impure.. It is also found in river ganga?? |
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Answer» Coliform Coliform Coliform bacteria E-coli |
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| 58167. |
Detergent formula |
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Answer» Na2co3.10h2o Detergent is sodium carbonate deca hydrate i.e. Na2CO3.10H20 |
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| 58168. |
What are forest called biodiversity hotspots |
| Answer» Cause forest is the home of many kind of animals and plants. So it is known as bio diversity hotspot | |
| 58169. |
draw and explain the teeth structure of human beings |
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Answer» Bcoz it\'s not possible on this app Teeth sturcture impossible it is not given in syllabus |
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| 58170. |
What is aquatic plant? |
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Answer» Plant which lives in water - Ex in river, ponds etc. Yey3632 tu udyog Plants that live in water... |
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| 58171. |
Radioactivity down the group increase or decrease |
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| 58172. |
Why do stars twinkle explain it in detail in Hindi |
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Answer» Jab taro ki roshani earth par ati hai tab usse vayumandal ki upari sata se refract hona padta hai jiski waja se tare twinkle karte hai U can check on google |
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| 58173. |
why do stars twinkle answer in hindi |
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Answer» Stars point source of light hote h. Jb stars s light aati h to atmosphere m gases ki layers present hoti h jinse kbhi jyada refraction hota h to kbhi km isije kbhi jyata shine krte h to tbhi km and hme twinkling krte hue dikhai dete h Explains it in detail in Hindi Atmospheric refraction ki wajh se |
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| 58174. |
Rani r u online |
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| 58175. |
How living organism get their food |
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Answer» Vi am talking about all organisms Plants make their own food by the process of photosynthesis and animals eat the food prepaired by the plants by the process of ingestion |
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| 58176. |
Sai answer hai good job thanks |
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| 58177. |
Alchohal esterification reaction aur formula me thoda doubt hai |
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Answer» no doubt reaction me acetic acid me alchol kid diya Means apko reaction samagh nahi aaya...??.. esterification ka... |
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| 58178. |
Work of neutral wire |
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Answer» Neutral wire=0 volt, so that potential difference is created ,we can touch neutral wire and feel no shock. Neutral wire prevents every type of possible shock when body comes in direct contact ( i.e without rubber gloves or safety measures ) with circuit wires When shock sherkit was there then it help |
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| 58179. |
Explain the process of germination |
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Answer» Germination is a process in which a seed starts growing to develop into a new plant. In this process seedling emerges out from seed. During germination the seed awakes from the dormancy period i.e. inactive period. When seeds get moisture adequate amount of oxygen and temperature then seed coat bursts and radicle emerges out. When embryo change into seed this is called germination |
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| 58180. |
What is name of top |
| Answer» Wearing top | |
| 58181. |
Which is converging mirror ? |
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Answer» Concave mirror Yaaa it\'s concave mirror Concave mirror |
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| 58182. |
NaCl with H2SO4 |
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Answer» Na2so4 +2Hcl 2NaCl(s) + H2SO4(aq)----> Na2SO4(aq) + 2HCl(aq) Na2So4 + hCl |
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| 58183. |
Explain real reproduction process |
| Answer» The male reproductive system in human beings is composed of following parts:Testis: There is a pair of testes; which lie in a skin pouch; called *******. ******* is suspended outside the body; below the abdominal cavity. This helps in maintaining the temperature of testes below the body temperature. This is necessary for optimum sperm production. Testis primarily serves the function of sperm production. Sperms are the male gametes. Apart from that, testis also produces testosterone. Testosterone is also called the male hormone, as it is responsible for developing certain secondary sexual characters in boys.Vas Deferens: Vas deferens is the tube which carries sperms to the seminal vesicle.Seminal Vesicle: This is the place where sperms are stored. Secretions from the seminal vesicle and prostate gland add up to make the semen.*****: It is a muscular organ which serves the genitor-urinary functions. The urethra works as the common passage for urine as well as for sperms. | |
| 58184. |
Why pure metal he is always collected at the cathode during electrolytic refining |
| Answer» In general, the polarity of cathode and anode is decided on the basis of the device used for different purposes. In electrolytic cell, cathode is taken as negative electrode while anode is taken as positive electrode. The two types of ions in refining are cations and anions. Cations carry pure metal while the anions carry the impurity. And since cations always possess positive charge therefore they are attracted towards cathode as they are negatively charged (unlike charges attract each other) while the anions carry negative charge hence they get attracted towards anode. Hence pure metal is always collected at the cathode. | |
| 58185. |
What is amphotric oxide give examples |
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Answer» Amphoteric oxides are those oxides which acts as boh acidic as well as basic are called as amphoteric oxides for example zinc and Aluminium . I hope you got your answer.? Oxide which react both acid and base are called amphoteric oxide eg.al2o3 + hcl = alcl3 + h2o Oxide which reacts both acid and base called amphhoteric oxide like al2o3 |
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| 58186. |
Write the moleculer of the 2 and 3 member of the homologus series whose first member is ethyne |
| Answer» Propyne (C3H4) and butyne (C4H6) | |
| 58187. |
Control and coordination quiz |
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| 58188. |
How "dc" generator differ from "ac" generator? |
| Answer» 1. The AC generator produces variable output voltage in term of amplitude and time. For some instance, it have a normal frequency of 60HZ . In India it is 50HZ.......Bt.......The DC generator produces constant output voltage in term of amplitude and time. Its output frequency is 0HZ.......2. In an AC ,or alternating current Generator the electrical current periodically reverses it\'s direction.....bt.........In a DC ,or direct current generator the current flows in One Direction. | |
| 58189. |
Control and coordination |
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| 58190. |
Cause of human population explosion how can we check it (with example) |
| Answer» Cause of human population increase is due the fact that in early period people were not aware about contraceptive methods and also they were having very low knowledge about reproductive health | |
| 58191. |
Explain the classification of diseases. What are different factors responsible for diseases |
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| 58192. |
What is role of villi in intestine?? |
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Answer» Villi helps to increase the surface area for absorption of nutrients It help to increase the area of inner wall of small intestine in order to absorb all digested foods/water... It helps in absortion of nutritions Villi help in absorbtion of food/water and nutrients |
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| 58193. |
Which is the life process that humans use to increase in population |
| Answer» Reproduction | |
| 58194. |
What is menarche and waht is menapause?(3 marks) |
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Answer» Menarche: The first menstrual flow which begins at puberty is called menarche. It occurs at the age of 12-13 years.Menopause: The stoppage of menstrual flow in females is called menopause. It occurs at the age between 45-50 years.\xa0 Menarche-The first menstruation in a girl after attaining puberty at age of 10-12years is called menarche.Menopause-The permanent stoppage of menstruation in a woman is called menopause. |
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| 58195. |
What is use of agcl? |
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Answer» It is used in black and white photography It is used in black nd white photography |
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| 58196. |
Resperation system |
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Answer» Reaction in wwhich heat is released along with formation of products.C6h12o6+6o^2=6co2+6h2o+energy. Respiration system |
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| 58197. |
Mock paper of science in EAD please give me some ques of it |
| Answer» From where I downloads | |
| 58198. |
Why girl have breast?what happen when egg fertilise . |
| Answer» Girls have brest to provide milk to their baby. And if egg is not fertilised then manstural flow will come out in form of blood | |
| 58199. |
Define tropism |
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Answer» Like animals plants also shows movements. The movement of plant in the direction of stimulus is knows as tropic movement. Plants show two different types of movements, one is independent of growth and the other is dependent on growth.\tThe movement of a plant part in response to light is called phototropism.\tThe movement of a plant part in response to gravity is called geotropism.\tThe movement of a plant part in response to chemicals is called chemotropism.\tThe movement of a plant part in response to water is called hydrotropism.\tThe directional movement of a plant part in response to touch of an object is called thigmotropism. Directional movement of a plant towards any change in enviroment ?? |
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| 58200. |
Explain the functions of the parts in electric motor-1.Armature2.Brushes 3.Split rings |
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Answer» 2.. Are conductor and stationary so after every half rotate split changes 3= act as commutator reverse the direction of current |
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