Question

In the standardization 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. (molecular weight)/2
B. (molecular weight)/6
C. (molecular weight)/3
D. Same as molecular weight

Answer 1

Correct Answer - B
Hypo solution are used as the reducing agent with potassium dicromate solution.
`K_(2)overset(+6)(Cr_(2))O_(7)=("molecular weight")/(6)`