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Chemistry
Which one of the following is an example of disproportionation reaction?
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Q. Which one of the following is an example of disproportionation reaction?
JEE Main
JEE Main 2022
Redox Reactions
A
$3 MnO _{4}^{2-}+4 H ^{+} \rightarrow 2 MnO _{4}^{-}+ MnO _{2}+2 H _{2} O$
85%
B
$MnO _{4}^{2-}+4 H ^{+}+4 e ^{-} \rightarrow MnO _{2}+2 H _{2} O$
0%
C
$10 I ^{-}+2 MnO _{4}^{-}+16 H ^{+} \rightarrow 2 Mn ^{2+}+8 H _{2} O +5 I _{2}$
15%
D
$8 MnO _{4}^{-}+3 S _{2} O _{3}^{2-}+ H _{2} O \rightarrow 8 MnO _{2}+6 SO _{4}^{2-}+2 OH ^{-}$
0%
Solution:
Correct answer is (a) $3 MnO _{4}^{2-}+4 H ^{+} \rightarrow 2 MnO _{4}^{-}+ MnO _{2}+2 H _{2} O$
