Chemistry Acid rain is caused due to pollution of atmosphere by Oxides of nitrogen and sulphur Oxides of carbon and nitrogen Oxides of nitrogen and phosphorous None of these Oxides of nitrogen and sulphur Oxides of carbon and nitrogen Oxides of nitrogen and phosphorous None of these ANSWER DOWNLOAD EXAMIANS APP
Chemistry 1 carat of diamond is equal to 200 mg 100 g 200 g 100 mg 200 mg 100 g 200 g 100 mg ANSWER DOWNLOAD EXAMIANS APP
Chemistry The chemical name of baking soda is Sodium bicarbonate Sodium nitrate Sodium carbonate Sodium chloride Sodium bicarbonate Sodium nitrate Sodium carbonate Sodium chloride ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following metals has least melting point ? Silver Gold Copper Mercury Silver Gold Copper Mercury ANSWER DOWNLOAD EXAMIANS APP
Chemistry The lightest gas which is non-inflammable is Oxygen Nitrogen Helium Hydrogen Oxygen Nitrogen Helium Hydrogen ANSWER DOWNLOAD EXAMIANS APP
Chemistry The percentage of oxygen in air is approximately 0.78 0.21 0.01 1 0.78 0.21 0.01 1 ANSWER DOWNLOAD EXAMIANS APP
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