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In the neutralization of Na(2)S(2)O(3) u...

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

A

`(Mw)/(2)`

B

`(Mw)/(6)`

C

`(Mw)/(3)`

D

same as the molecular weight

Text Solution

Verified by Experts

The correct Answer is:
B
`6e^(-)+Cr_(2)O_(7)^(2-)to2Cr^(3+)`
`Ew=(Mw)/(6)`
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