Chemistry Which of the following gases is mixed with oxygen for breathing by divers in aqua lungs? Nitrogen Methane Hydrogen Helium Nitrogen Methane Hydrogen Helium ANSWER DOWNLOAD EXAMIANS APP
Chemistry The working of a dry cell is based on Combination reaction Electrolysis Spontaneous oxidation-reduction reaction Decomposition reaction Combination reaction Electrolysis Spontaneous oxidation-reduction reaction Decomposition reaction ANSWER DOWNLOAD EXAMIANS APP
Chemistry The gas that causes suffocation and death when coal or coke is burnt in a closed room is Methane Carbon di-oxide Carbon monoxide Ethane Methane Carbon di-oxide Carbon monoxide Ethane ANSWER DOWNLOAD EXAMIANS APP
Chemistry In chemical terms, what are alums used for purifying water for drinking purposes ? Double sulphates Double nitrate Hydrated chlorides Nitrates of aluminium Double sulphates Double nitrate Hydrated chlorides Nitrates of aluminium ANSWER DOWNLOAD EXAMIANS APP
Chemistry The chemical(s) most commonly used for cloud seeding or ‘artificial rainmaking’ is/are Sodium Chloride Dry ice or frozen carbon dioxide All listed here Silver Iodide Sodium Chloride Dry ice or frozen carbon dioxide All listed here Silver Iodide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following organic compounds has fruity smell? Ether Aldehyde Alcohol Ester Ether Aldehyde Alcohol Ester ANSWER DOWNLOAD EXAMIANS APP
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