Question

How the acidified permanganate solution reacts with oxalic acid?

• A. $2Mn{O}_4^{-}+16H^{+}+5C_2{O}_4^{2-}\to 2M{n}^{2+}+8H_{2}O+10C{O}_2$
• B. $3Mn{O}_4^{-}+16H^{+}+7C_2{O}_4^{2-}\to 3M{n}^{2+}+8H_{2}O+14C{O}_2$
• C. $3Mn{O}_4^{-}+14H^{+}+5C_2{O}_4^{2-}\to 3M{n}^{2+}+7H_{2}O+10C{O}_2$
• D. None of these

Answer 1

The correct option is A $2Mn{O}_4^{-}+16H^{+}+5C_2{O}_4^{2-}\to 2M{n}^{2+}+8H_{2}O+10C{O}_2$

Acidified permanganate solution oxidises oxalates to carbon dioxide.
Reaction of acidified permanganate solution with oxalic acid :
$2Mn{O}_4^{-}+16H^{+}+5C_2{O}_4^{2-}\to 2M{n}^{2+}+8H_{2}O+10C{O}_2$