Chemistry Electrolysis of an aqueous solution of copper sulphate using copper electrodes gives Hydrogen at cathode and oxygen at anode Copper at cathode and oxygen at anode Copper at cathode and anodes dissolve to give copper Copper at anode and oxygen at cathode. Hydrogen at cathode and oxygen at anode Copper at cathode and oxygen at anode Copper at cathode and anodes dissolve to give copper Copper at anode and oxygen at cathode. ANSWER DOWNLOAD EXAMIANS APP
Chemistry When a lead storage battery is discharged, Lead is formed Lead sulphate is consumed Sulphuric acid is consumed SO2 is evolved Lead is formed Lead sulphate is consumed Sulphuric acid is consumed SO2 is evolved ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following is a micro-element ? Nitrogen Hydrogen Oxygen Chlorine Nitrogen Hydrogen Oxygen Chlorine ANSWER DOWNLOAD EXAMIANS APP
Chemistry Nitrogen forms a variety of compounds in all oxidation states ranging from –3 to + 6 –3 to + 5 –3 to + 3 –3 to + 4 –3 to + 6 –3 to + 5 –3 to + 3 –3 to + 4 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following is not coal variety? Peat Lignite Bituminous Dolomite Peat Lignite Bituminous Dolomite ANSWER DOWNLOAD EXAMIANS APP
Chemistry Cooking gas is a mixture of Carbon dioxide and oxygen Carbon monoxide and carbon dioxide Butane and propane Methane and ethylene Carbon dioxide and oxygen Carbon monoxide and carbon dioxide Butane and propane Methane and ethylene ANSWER DOWNLOAD EXAMIANS APP
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