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K(2)CrO(4) oxidises KI in the presence o...

`K_(2)CrO_(4)` oxidises KI in the presence of KCl to `I_(2)`. The equivalent weight of the `K_(2)CrO_(4)` is

A

`(Mw)/(2)`

B

`Mwxx(2)/(3)`

C

`(Mw)/(3)`

D

`(Mw)/(6)`

Text Solution

Verified by Experts

The correct Answer is:
C
`3e^(-)+underset(x=6)(CrO_(4)^(2-)toundersetunderset((x=6-3=3)(x=3)([Cr(OH)_(4)]^(ɵ))`
`thereforeEw=(Mw)/(3)`
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