Which of the following reactions involve...

Which of the following reactions involves neither oxidation nor reduction ?

A

`CrO_(4)^(-2) rarr Cr_(2)O_(7)^(2-)`

B

`Cr rarr CrCl_(3)`

C

`Na rarr Na^(+)`

D

`2S_(2)O_(3)^(2-) rarr S_(4)O_(6)^(2-)`

Text Solution

Verified by Experts

The correct Answer is:

A

`overset(+6)(Cr)O_(4)^(-2) rarr overset(+6)(Cr_(2))O_(7)^(-2)`

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