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In the standardisation of Na2S2O3 using ...

In the standardisation of `Na_2S_2O_3` using `K_2 Cr_2O_7` equivalent wt of `K_2Cr_2O_7` is

A

`M//2`

B

`M//6`

C

`M//3`

D

M

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The correct Answer is:
B
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