If electrolysis of aqueous $CuSO_4$ solution is carried out using $Cu$ electrodes, the reaction taking place at the anode is:
- A$H^{+} + e^{-} \rightarrow H$
- B$Cu^{2+}_{(aq)} + 2e^{-} \rightarrow Cu_{(s)}$
- C$S{O_{4}}^{2-}_{(aq)} - 2e^{-} \rightarrow SO_{4}$
- D$Cu_{(s)} - 2e^{-} \rightarrow Cu^{2+}_{(aq)}$
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On electrolysis of aqueous solution of $KI$ in the presence of platinum electrodes,which of the following statements are correct?
$(a)$ Hydrogen gas is released at the cathode.
$(b)$ Oxygen gas is released at the anode.
$(c)$ $pOH$ of the solution decreases.
$(d)$ There is deposition of potassium at the cathode.
$(a)$ Hydrogen gas is released at the cathode.
$(b)$ Oxygen gas is released at the anode.
$(c)$ $pOH$ of the solution decreases.
$(d)$ There is deposition of potassium at the cathode.
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