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The oxoanion which contains all equivale...

The oxoanion which contains all equivalent `M-O` bond is:
(I)`Cr_(4)^(2-)` (II)`MnO_(4)^(-)` (III)`Cr_(2)O_(7)^(2-)`

A

III only

B

I, II, III

C

I, II

D

I only

Text Solution

Verified by Experts

The correct Answer is:
C
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