Chemistry Williamson's synthesis is widely used in the laboratory preparation of Esters Ethers Aldehydes Alcohols Esters Ethers Aldehydes Alcohols ANSWER DOWNLOAD EXAMIANS APP
Chemistry Cement containing excess amount of lime Becomes more strong Cracks during setting Is quick setting Is slow setting Becomes more strong Cracks during setting Is quick setting Is slow setting ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is used to remove rust stains on cloth? Lime Kerosene Petrol Oxalic acid solution Lime Kerosene Petrol Oxalic acid solution ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one is the most reactive halogen Fluorine Iodine Chlorine Bromine Fluorine Iodine Chlorine Bromine ANSWER DOWNLOAD EXAMIANS APP
Chemistry When lime juice is dropped on baking soda, brisk effervescence takes place because the gas evolved is Carbon dioxide All of them Oxygen Hydrogen Carbon dioxide All of them Oxygen Hydrogen ANSWER DOWNLOAD EXAMIANS APP
Chemistry The presence of ozone in the stratosphere is responsible for Checking the penetration of ultra-violet rays to the earth Increasing the average global temperature in recent years Supplying oxygen for people travelling in jets Higher rate of photosynthesis Checking the penetration of ultra-violet rays to the earth Increasing the average global temperature in recent years Supplying oxygen for people travelling in jets Higher rate of photosynthesis ANSWER DOWNLOAD EXAMIANS APP