Redox Reactions

Match the following.

.tg {border-collapse:collapse;border-spacing:0;}

.tg td{border-color:black;border-style:solid;border-width:1px;font-family:Arial, sans-serif;font-size:14px;

overflow:hidden;padding:10px 5px;word-break:normal;}

.tg th{border-color:black;border-style:solid;border-width:1px;font-family:Arial, sans-serif;font-size:14px;

font-weight:normal;overflow:hidden;padding:10px 5px;word-break:normal;}

.tg .tg-0pky{border-color:inherit;text-align:left;vertical-align:top}

.tg .tg-0lax{text-align:left;vertical-align:top}

List.l (Substance)	List II (Equivalent weight)
A $\mathrm{Na}_2 \mathrm{CO}_3$	I. $\frac{M}{5}$
B $\mathrm{KMnO}_4 / \mathrm{H}^{+}$	II. $\frac{M}{3}$
C $\mathrm{K}_2 \mathrm{Cr}_2 \mathrm{O}_7 / \mathrm{H}^{+}$	III. $\frac{M}{2}$
D $\mathrm{KMnO}_4 / \mathrm{H}_2 \mathrm{O}$	IV. $\frac{M}{6}$

( $M=$ Formula weight)

The correct answer is