Chemistry A metal is exposed to the atmosphere for sometime. It becomes coated with green carbonate. The metal must be Zinc Copper Aluminium Silver Zinc Copper Aluminium Silver ANSWER DOWNLOAD EXAMIANS APP
Chemistry Commonly used antiseptic 'Dettol' is a mixture of Chloroxylenol + terepineol O-chlorophenoxylenol + terepineol Phenol + terepineol O-cresol + terepineol Chloroxylenol + terepineol O-chlorophenoxylenol + terepineol Phenol + terepineol O-cresol + terepineol ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following was used as a chemical weapon in the first world war ? Hydrogen cyanide Water gas Mustard gas Carbon monoxide Hydrogen cyanide Water gas Mustard gas Carbon monoxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which among the following metals provides amphoteric oxide ? Aluminium Calcium Silver Sodium Aluminium Calcium Silver Sodium ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following is not a ‘green house gas’ ? Chlorofluorocarbons Carbon dioxide Nitrogen Methane Chlorofluorocarbons Carbon dioxide Nitrogen Methane ANSWER DOWNLOAD EXAMIANS APP
Chemistry Catalyst is a substance which Decreases the rate of reaction Has no action on the rate of the reaction None of these Increases the rate of the reaction Decreases the rate of reaction Has no action on the rate of the reaction None of these Increases the rate of the reaction ANSWER DOWNLOAD EXAMIANS APP
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