Chemistry Where does the oxygen that keeps us alive come from? Oxides of minerals Carbon dioxide Water Carbonates absorbed from soil Oxides of minerals Carbon dioxide Water Carbonates absorbed from soil ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following in automobile exhaust can cause cancer? Carbon monoxide Polyclinic hydrocarbons Lead Oxides of nitrogen Carbon monoxide Polyclinic hydrocarbons Lead Oxides of nitrogen ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is used to increase the anti-knocking property of petrol ? Tetramethyl lead Triethyl lead Tetraethyl lead Trimethyl lead Tetramethyl lead Triethyl lead Tetraethyl lead Trimethyl lead ANSWER DOWNLOAD EXAMIANS APP
Chemistry KMnO4 can be used as a/an Fertiliser Insecticide Disinfectant Pesticide Fertiliser Insecticide Disinfectant Pesticide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is not a chemical reaction'? Digestion of food Burning of paper Burning of coal Conversion of water into steam Digestion of food Burning of paper Burning of coal Conversion of water into steam ANSWER DOWNLOAD EXAMIANS APP
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