Q2Multiple choice
Brine is electrolysed using inert electrodes. The reaction at anode is _____. (1) – 1 V
- (i)Cl (aq.) → Cl (g) + e– ; ECell = 1.36V 2 2 + V
- (ii)2H2O (l) → O2 (g) + 4H + 4e– ; ECell = 1.23V
- (iii)Na+ (aq.) + e– → Na(s) ; ECell = 2.71V + 1 V
- (iv)H (aq.) + e– → H (g) ; ECell = 0.00V 2 2
Show answer
(i) Cl (aq.) → Cl (g) + e– ; ECell = 1.36V 2 2 + V