Chemistry Which among the following metals provides amphoteric oxide ? Aluminium Calcium Sodium Silver Aluminium Calcium Sodium Silver ANSWER DOWNLOAD EXAMIANS APP
Chemistry The presence of ozone in the stratosphere is responsible for Increasing the average global temperature in recent years Checking the penetration of ultra-violet rays to the earth Supplying oxygen for people travelling in jets Higher rate of photosynthesis Increasing the average global temperature in recent years Checking the penetration of ultra-violet rays to the earth Supplying oxygen for people travelling in jets Higher rate of photosynthesis ANSWER DOWNLOAD EXAMIANS APP
Chemistry The pair of compounds used as anaesthetic in medicines : Ether, Ammonia Nitrous oxide, Chloroform Chloroform, Nitrogen dioxide Nitrogen dioxide, ether Ether, Ammonia Nitrous oxide, Chloroform Chloroform, Nitrogen dioxide Nitrogen dioxide, ether ANSWER DOWNLOAD EXAMIANS APP
Chemistry Name two elements that find wide application in transistor industry Tungsten and Platinum Silicon and Germanium Carbon and Platinum Iridium and Germanium Tungsten and Platinum Silicon and Germanium Carbon and Platinum Iridium and Germanium ANSWER DOWNLOAD EXAMIANS APP
Chemistry What is 'milk of magnesia' chemically? Calcium hydroxide Sodium bicarbonate Magnesium hydroxide Magnesium carbonate Calcium hydroxide Sodium bicarbonate Magnesium hydroxide Magnesium carbonate ANSWER DOWNLOAD EXAMIANS APP
Chemistry The oil used in the froth floatation process is pine oil olive oil coconut oil kerosene oil pine oil olive oil coconut oil kerosene oil ANSWER DOWNLOAD EXAMIANS APP
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