Balance the following redox equaiton by ...

Balance the following redox equaiton by both methods.
`[Cr(OH)_(4)]^(ө)+H_(2)O_(2)rarrCrO_(4)^(2-)+H_(2)O`(basic medium)

A

3

B

6

C

5

D

2

Verified by Experts

The correct Answer is:

B

`Cr(OH)_(4)^(-)+4OH^(-)rarrCrO_(4)^(2-)+4H_(2)O+6e^(-)`

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