Chemistry Cooking gas is a mixture of Carbon dioxide and oxygen Methane and ethylene Butane and propane Carbon monoxide and carbon dioxide Carbon dioxide and oxygen Methane and ethylene Butane and propane Carbon monoxide and carbon dioxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry A balloon filled with helium rises in air because Air exerts an upward force on the balloon Helium is less dense than air Helium pushes down on the air below the balloon The balloon is weightless Air exerts an upward force on the balloon Helium is less dense than air Helium pushes down on the air below the balloon The balloon is weightless ANSWER DOWNLOAD EXAMIANS APP
Chemistry Tear gas is : Bleaching powder Chloroprene Nitrous oxide Carbonyl chloride Bleaching powder Chloroprene Nitrous oxide Carbonyl chloride ANSWER DOWNLOAD EXAMIANS APP
Chemistry The metal used for making aircrafts and rockets is Nickel Aluminium Copper Lead Nickel Aluminium Copper Lead ANSWER DOWNLOAD EXAMIANS APP
Chemistry Water is not effective in extinguishing a fire caused by petrol because Water and petrol are immiscible with each other and petrol which forms the upper layer continues to burn Water and petrol are miscible with each other The flame is too hot for water to cool it down Water and petrol react chemically Water and petrol are immiscible with each other and petrol which forms the upper layer continues to burn Water and petrol are miscible with each other The flame is too hot for water to cool it down Water and petrol react chemically ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one is the purest form of carbon Graphite Coal Iron Diamond Graphite Coal Iron Diamond ANSWER DOWNLOAD EXAMIANS APP
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