Which of the following solution is strongest oxidizing agent? - Vidyadip

MCQ

Which of the following solution is strongest oxidizing agent?

A
$\text{MnO}_4^- $ in acidic medium.
✓
$\text{MnO}_4^-$ in basic medium.
C
$\text{MnO}_2$ in basic medium.
D
$\text{CrO2}_4^-$ in basic medium.

✓

Answer

Correct option: B.

$\text{MnO}_4^-$ in basic medium.

$\text{MnO}_4^-+3\text{e}^-+2\text{H}_2\text{O}\xrightarrow{ \ \ \ \ \ \ \ \ }\text{MnO}_2+4\text{OH}^- \
\text{E}^\circ = 1.69V,$ which is highest.

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