In electrolysis of water : 1.name the gas collected at the cathode and anode respectively? 2.how we will test this evolved gas ?
February 20th, 2023
1.
Hydrogen and oxygen respectively.
2.
Hydrogen will burn with a ” squeaky pop” when treated with a burning splint. Oxygen re-lights a glowing splint.
At the cathode (-) water is reduced:
##H_2O_((l))+erarr1/2H_(2(g))+OH_((aq))^-##.
At the anode (+) water is oxidized:
##H_2O_((l))rarr1/2O_(2(g))+2H_((aq))^(+)+2e##
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In electrolysis of water : 1.name the gas collected at the cathode and anode respectively? 2.how we will test this evolved gas ?
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