Chemistry > 2003 > 33
WASSCE
The equation for the reaction at the anode during the electrolysis of concentrated sodium chloride solution is
A.
2Cl-(aq) → Cl2(g) + 2e-
B.
4OH-(aq) → 2H2O(l) + O2(g) + 4e-
C.
Na+(aq) + e- → Na(s)
D.
2H+(aq) + 2e → H2(g)
Answer: A
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