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In the standarization of Na(2)S(2)O(3) ...

In the standarization of `Na_(2)S_(2)O_(3)` using `K_(2)Cr_(2)O_(7)` by iodometry , the equivalent weight of `K_(2)Cr_(2)O_(7)` is

A

mol wt /2

B

mol wt/6

C

mol wt/3

D

same as mol wt.

Text Solution

Verified by Experts

The correct Answer is:
B
`Cr_(2)O_(7)^(2-) + 14H^(+) + 6e^(-) to 2Cr^(3+) + 7H_(2)O`
Eq. wt. = `("Mol. Wt")/(6)`
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