Chemistry What is the element that is in the highest percentage in the composition of the earth ? Silicon Iron Oxygen Magnesium Silicon Iron Oxygen Magnesium ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following was used as a chemical weapon in the first world war ? Carbon monoxide Mustard gas Hydrogen cyanide Water gas Carbon monoxide Mustard gas Hydrogen cyanide Water gas ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following acts as best adsorbent? Charcoal Carbon black Activated Coconut Charcoal Activated Charcoal Charcoal Carbon black Activated Coconut Charcoal Activated Charcoal ANSWER DOWNLOAD EXAMIANS APP
Chemistry In chemical terms, what are alums used for purifying water for drinking purposes ? Hydrated chlorides Double nitrate Double sulphates Nitrates of aluminium Hydrated chlorides Double nitrate Double sulphates Nitrates of aluminium ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which gas is used as fire extinguisher ? Carbon dioxide Sulphur dioxide Carbon monoxide Carbon suboxide Carbon dioxide Sulphur dioxide Carbon monoxide Carbon suboxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following alloy is used in making magnet ? Alnico Magnalium Stainless steel Duralumin Alnico Magnalium Stainless steel Duralumin ANSWER DOWNLOAD EXAMIANS APP
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