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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.
| 42101. |
Ozen layer |
| Answer» Its ozone | |
| 42102. |
What is hormone? |
| Answer» They are chemical messengers carried by blood,lymph to stimulate physiological changes. | |
| 42103. |
What is mendeleeves law pls with proper explanation and example |
| Answer» Refer s Chand for explanation | |
| 42104. |
Compare reuse and recycle methods for conservation of environment. |
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Answer» Reuse is better than than recycle because the process of recycling use some resources while in reuse we use a resource again and again In reuse method energy is not waste but in recycle method energy is waste |
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| 42105. |
What are the steps to achieve good score in chemistry |
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Answer» Learn all reaction do nothing keep sleep till exam |
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| 42106. |
Hii friends tum sab ki sari book Learn how to gye kiya |
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Answer» Half nhi nhii complete nhi hui h |
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| 42107. |
Differences between mendlif periodic table andmodern periodic table, explain |
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Answer» Mendeleev periodic table is based on atomic masses but modern periodic table is based on elements atomic number . Madelif periodic table was based atomic mass whereas modern periodic table is based on atomic number Mendleev periodic table had some anamolies but modern periodic table does not have any anamolies. |
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| 42108. |
Hii friends my self Payal rathod |
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Answer» Hiii ? Hloooo Hello ?? ? ? |
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| 42109. |
What is the physical and chemical difference between Diamond and graphite? |
| Answer» Diamond is very hard whereas the graphite is soft and slippery graphite is greyish black opaque substance whereas diamond is colourless transparent substance having extraordinary brilliance also chemical difference graphite conduct electricity whereas diamond does not | |
| 42110. |
What is meant by denatured alcohol? |
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Answer» Denatured alcohol is anot ethyl alcohol which has been made unfit for drinking purpose by adoing small amount of methanol,pyridine ,copper sulphate It is a ethyl alcohol which has been unfit for drinking purposes by adding small amounts of poisonous substances Alcohol which have been making unfit for drinking by adding small amount of poisonous substance like methanol, coppersulphate etc is called denature alcohol |
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| 42111. |
Give the structural formulas for methyl ethanoate. |
| Answer» Methyl ethanoate orMethyl acetate, Formula C3H6O2 | |
| 42112. |
How blood groups are inherited? |
| Answer» Depend on antigen on red blood cells and antibodies present in plasma | |
| 42113. |
Distinguish between dispersion and spectrum of light |
| Answer» The band of coloured components of a light beam is spectrum and the splitting of light into its components colours is dispersion | |
| 42114. |
The depletion of ozonr layer is cause of concern.why |
| Answer» because harmful uv rays enter earth which causes cancers , eye problems and skin diseases | |
| 42115. |
In chapter light how to draw the ray diagram of numericals |
| Answer» | |
| 42116. |
Define food chain? |
| Answer» | |
| 42117. |
Write the number of covalent bonds in molecular of ethane |
| Answer» 7 | |
| 42118. |
How to humans reproduce |
| Answer» | |
| 42119. |
What is saponification reaction ?? |
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Answer» CH3COOC2H5+NAOH -- CH3COONA+C2H5OH the reaction in which soap is formed is know as saponification reaction.it is the reverse of esterification reaction.... |
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| 42120. |
Would someone be kind enough to answer me about MOLAR VOLUME |
| Answer» | |
| 42121. |
What is flux in metallurgy |
| Answer» | |
| 42122. |
What is STP |
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Answer» STP is a concept used in chemistry.It is Standard temperature pressure It is not STP it is STD.Sexsually Transmitted Disease. |
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| 42123. |
Name one gland in humanbody which secretes digestive enzyme as well as hormones |
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Answer» Pancrear Pancreas |
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| 42124. |
What is the colour of ***** |
| Answer» | |
| 42125. |
Magnetic field inse the solenoid is uniform or nonuniform |
| Answer» Uniform | |
| 42126. |
Fraction |
| Answer» | |
| 42127. |
Succesive Refraction |
| Answer» | |
| 42128. |
World harest metal |
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Answer» Chromium Hardest not harest |
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| 42129. |
What is functionalgroup |
| Answer» the group of atoms which forms a bond with hydro carbons by removing 1 hydrogen atom.. | |
| 42130. |
Which method is used to reduce the oxide of highly reactive metals? |
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Answer» Electrolytic refining Electrolysis |
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| 42131. |
What is hydrated salt? |
| Answer» | |
| 42132. |
What is medulla. |
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Answer» it is continued as spinal cord ....reflex centre fr vomiting ,coughing, sneezing nd swallowing .....controls heartbeat, breathing nd involuntary movements ... it is the vital part of brain.. Medulla oblongata is the regulating center for swallowing, coughing, sneezing and vomiting. Part of brain which control involuntary action except respiration.... |
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| 42133. |
What is horizon |
| Answer» | |
| 42134. |
Formation of magnesium chloride |
| Answer» Mg + 2HCl = MgCl2 + H2 | |
| 42135. |
Define 1 ohm meter resistivity |
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Answer» 1R(1A)÷1l=1p If the p.d. is 1v nd the current is 1A ..then R becomes 1ohm |
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| 42136. |
Physical differences between ethanol and ethanol acid |
| Answer» Ethanoic acid is sour in taste whereas ethanol gives burning taste | |
| 42137. |
What is function of HCL according to 5 marks |
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Answer» Give acidic medium gor pepsin Kills harmful bacteria Prevents fermentation of food. |
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| 42138. |
What is parturition |
| Answer» Parturition the delivery of the baby | |
| 42139. |
Mention merits of nuclear fission energy. |
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Answer» Thanks genius. Amount of energy High amiunt from very small input |
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| 42140. |
What is metabolism?and how does it work? |
| Answer» | |
| 42141. |
differeces between metals and non - metals on bases of [a] malleaability [B] el ectrical conditivity |
| Answer» Metal are malleable on the other hand non metal are non malleable. Metal conduct electricity but non metal do not conduct electricity. | |
| 42142. |
What is hypocotyl |
| Answer» | |
| 42143. |
we read n c e r t or reference |
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Answer» Are you asking or telling? n c e r t |
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| 42144. |
What is the principle of DC generator |
| Answer» | |
| 42145. |
How hormon help to coordinate activities of body |
| Answer» | |
| 42146. |
How are the "jerks" in the motion of motor controlled? Give reason. |
| Answer» | |
| 42147. |
pleura |
| Answer» | |
| 42148. |
What are slip rings and split rings |
| Answer» Split rings are used in motor for taking electricity...and slip rings are used in generators to generate electricity... | |
| 42149. |
How to find out the chemical formula of nitrate by using cross valencies of nitrogen and |
| Answer» | |
| 42150. |
How to find the chemical formula of nitrate by using cross valencies of nitrogen and oxygen |
| Answer» N2o3 | |