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Which of the following reactions are dis...

Which of the following reactions are disproportionation reactions ?
`(i) Cu^(+) to Cu^(2+) + Cu `
`(ii) 3MnO_4^(2-) + 4H^(+ ) to 2MnO_4^(-) + MnO_2 + 2H_2O`
` (iii) 2KMnO_4 to K_2 MnO_4 + MnO_2 + O_2`
` (iv) 2MnO_4^(-) + 3Mn^(2+) + 2H_2O to 5MnO_2 + 4H^+`

A

(i)

B

(i), (ii) and (iii)

C

(ii), (iii) and (iv)

D

(i) and (iv)

Text Solution

Verified by Experts

The correct Answer is:
A
The reaction in which oxidation as well as reduction, occur upon same atom simultaneously is known as disproportionation reaction.
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