On electrolysis of aqueous solution of KI in | vedclass

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(C) During the electrolysis of aqueous $KI$ solution,the following reactions occur:At the cathode: $2H_2O(l) + 2e^- \rightarrow H_2(g) + 2OH^-(aq)$. T

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$a, c$

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(C) During the electrolysis of aqueous $KI$ solution,the following reactions occur:At the cathode: $2H_2O(l) + 2e^- \rightarrow H_2(g) + 2OH^-(aq)$. Thus,$H_2$ gas is released at the cathode.At the anode: $2I^-(aq) \rightarrow I_2(s) + 2e^-$. Thus,$I_2$ is formed at the anode,not $O_2$.Since $OH^-$ ions are produced in the solution,the concentration of $OH^-$ increases,which means $pOH$ decreases and $pH$ increases.Potassium $(K)$ is not deposited because the reduction potential of $H_2O$ is higher than that of $K^+$.Therefore,statements $(a)$ and $(c)$ are correct.

On electrolysis of aqueous solution of $KI$ in presence of platinum electrodes:
$(a)$ Hydrogen gas is released at cathode
$(b)$ Oxygen gas is released at anode
$(c)$ $pOH$ of solution decreases
$(d)$ There is deposition of potassium at cathode
Choose the correct option from following

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On electrolysis of aqueous solution of $KI$ in presence of platinum electrodes:$(a)$ Hydrogen gas is released at cathode$(b)$ Oxygen gas is released at anode$(c)$ $pOH$ of solution decreases$(d)$ There is deposition of potassium at cathodeChoose the correct option from following