Chemistry Electrolysis of an aqueous solution of copper sulphate using copper electrodes gives 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. Hydrogen at cathode and oxygen at anode ANSWER DOWNLOAD EXAMIANS APP
Chemistry A detergent is a Drug Soap Cleansing agent Catalyst Drug Soap Cleansing agent Catalyst ANSWER DOWNLOAD EXAMIANS APP
Chemistry Commercial nitric acid is coloured because it contains dissolved : Nitrogen dioxide Nitrous oxide Oxygen Coloured impurities Nitrogen dioxide Nitrous oxide Oxygen Coloured impurities ANSWER DOWNLOAD EXAMIANS APP
Chemistry The metal extracted from Bauxite is : Copper Manganese Silver Aluminum Copper Manganese Silver Aluminum ANSWER DOWNLOAD EXAMIANS APP
Chemistry A balloon filled with helium rises in air because Helium is less dense than air The balloon is weightless Helium pushes down on the air below the balloon Air exerts an upward force on the balloon Helium is less dense than air The balloon is weightless Helium pushes down on the air below the balloon Air exerts an upward force on the balloon ANSWER DOWNLOAD EXAMIANS APP
Chemistry The minimum energy required for an effective collision is Threshold energy Free energy Activation energy Internal energy Threshold energy Free energy Activation energy Internal energy ANSWER DOWNLOAD EXAMIANS APP
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