question_answer

Brine is electrolysed by using inert electrodes. The reaction at anode is _____.

A) \[C{{l}^{-}}(aq)\xrightarrow{{}}\frac{1}{2}C{{l}_{2}}(g)+{{e}^{-}};\]\[E_{cell}^{{}^\circ }=1.36V\]

B) \[2{{H}_{2}}O(1)\xrightarrow{{}}{{O}_{2}}(g)+4{{H}^{+}}4{{e}^{-}};\]\[E_{cell}^{{}^\circ }=1.23V\]

C)  \[N{{a}^{+}}(aq)+{{e}^{-}}\xrightarrow{{}}Na(s);\]\[E_{cell}^{{}^\circ }=2.71V\]

D) \[{{H}^{+}}(aq)+{{e}^{-}}\xrightarrow{{}}\frac{1}{2}{{H}_{2}}(g);\]\[E_{cell}^{{}^\circ }=0.00V\]