1.

100 mL of a buffer of 1 M NH_(3) (aq) and 1 M NH_(4)""^( +) (aq) are placed in two voltaic cells separately . A current of 1.5 A is passed through both cells for 20 minutes . If electrolysis of water only takes place 2H_(2)O+ O_(2) + 4 e^(-) rarr 4 OH^(-) (RHS) 2H_(2)O rarr 4H^(+) + O_(2) + 4e^(-) (LHS) then pH og the :

Answer»

LHS HALF CELL will increase
RHS half-cell will increase
both half-cells will increase
both half-cells will decrease

Answer :B


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