The oxidation states not shown by Mn in given reaction is A. +6 B. +2 C. +4 D. +7 E. +3 Choose the most appropriate answer from the options given below: [2024]

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Solution

Q.
The oxidation states not shown by Mn in given reaction is

$3 {MnO}_{4}^{2 -} + 4 H^{+} ⟶ 2 {MnO}_{4}^{-} + {MnO}_{2} + 2 H_{2} O$

A. +6 B. +2 C. +4 D. +7 E. +3

Choose the most appropriate answer from the options given below: [2024]

1 D and E only

2 B and D only

3 A and B only

4 B and E only

Ans.
(4)

$\overset{+ 6}{3 {MnO}_{4}^{2 -}} + 4 H^{+} \to \overset{+ 7}{2 {MnO}_{4}^{-}} + \overset{+ 4}{{MnO}_{2}} + 2 H_{2} O$

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