Chemistry The chief source of naphthalene is Charcoal Camphor Coal-tar Diesel Charcoal Camphor Coal-tar Diesel ANSWER DOWNLOAD EXAMIANS APP
Chemistry The depletion in Ozone layer is caused by ________ . Methane Nitrous oxide Chlorofluorocarbons Carbon dioxide Methane Nitrous oxide Chlorofluorocarbons Carbon dioxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry The name of unreactive gas is Hydrogen Carbon dioxide Oxygen Nitrogen Hydrogen Carbon dioxide Oxygen Nitrogen ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following contributes largely to the ‘green house effect’ ? Water vapour Ozone Carbon dioxide Carbon monoxide Water vapour Ozone Carbon dioxide Carbon monoxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following fuels causes minimum environmental pollution? Diesel Hydrogen Coal Kerosene Diesel Hydrogen Coal Kerosene ANSWER DOWNLOAD EXAMIANS APP
Chemistry Petroleum consists of a mixture of Carbonates Carbides Carbohydrates Hydrocarbons Carbonates Carbides Carbohydrates Hydrocarbons ANSWER DOWNLOAD EXAMIANS APP
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