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Cr(2)O(7)^(2-)overset(H^(+))rarrCr^(3+),...

`Cr_(2)O_(7)^(2-)overset(H^(+))rarrCr^(3+)`, Eq. wt. of `Cr_(2)O_(7)^(2-)` is :-

A

mol wt/6

B

mol wt/3

C

mol, wt/4

D

mol, wt/2

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The correct Answer is:
A
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