Chemistry Which of the following is not a chemical reaction'? Digestion of food Burning of paper Conversion of water into steam Burning of coal Digestion of food Burning of paper Conversion of water into steam Burning of coal ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following is not a ‘green house gas’ ? Carbon dioxide Methane Nitrogen Chlorofluorocarbons Carbon dioxide Methane Nitrogen Chlorofluorocarbons ANSWER DOWNLOAD EXAMIANS APP
Chemistry The first metal used by man was iron gold bronze copper iron gold bronze copper ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is used in making smoke bombs? Carbon Sulphur Phosphorus Hydrogen Carbon Sulphur Phosphorus Hydrogen ANSWER DOWNLOAD EXAMIANS APP
Chemistry The maximum number of covalent formed by nitrogen is 3 4 1 2 3 4 1 2 ANSWER DOWNLOAD EXAMIANS APP
Chemistry The gas used for artificial fruit ripening of green fruit is Methane Ethane Ethylene Acetylene Methane Ethane Ethylene Acetylene ANSWER DOWNLOAD EXAMIANS APP
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