Chemistry Copper is refined by Oxidation Roasting Zone refining Electrolysis Oxidation Roasting Zone refining Electrolysis ANSWER DOWNLOAD EXAMIANS APP
Chemistry In vulcanisation process, rubber can be hardened by adding Alcohol Sulphur Silicon Nitrogen Alcohol Sulphur Silicon Nitrogen ANSWER DOWNLOAD EXAMIANS APP
Chemistry The molecular mass of a gas is Twice its vapour pressure Equal to its vapour pressure Half its vapour pressure Not related to its vapour pressure Twice its vapour pressure Equal to its vapour pressure Half its vapour pressure Not related to its vapour pressure ANSWER DOWNLOAD EXAMIANS APP
Chemistry Conversion of chemical energy into electrical energy occurs in Dynamo A battery Atomic bombs Electric heaters Dynamo A battery Atomic bombs Electric heaters ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which acid is used in Lead storage battery? Hydrochloric acid Sulphuric acid Nitric acid Acetic acid Hydrochloric acid Sulphuric acid Nitric acid Acetic acid ANSWER DOWNLOAD EXAMIANS APP
Chemistry Earth’s atmosphere is an envelope of gases extending to a height of 100 km 300 km 150 km 200 km 100 km 300 km 150 km 200 km ANSWER DOWNLOAD EXAMIANS APP
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