question_answer

In standardization of \[N{{a}_{2}}{{S}_{2}}{{O}_{3}}\] using \[{{K}_{2}}C{{r}_{2}}{{O}_{7}}\] by iodometry, the equivalent weight of \[{{K}_{2}}C{{r}_{2}}{{O}_{7}}\] is             [IIT 2000]

A)                 \[MW/2\]

B)                 \[MW/3\]

C)                 \[MW/6\]

D)                 \[MW/1\]

Correct Answer: C

Solution :

                \[\text{Eq}\text{. wt}\text{.}=\frac{\text{Mol}\text{. wt}\text{.}}{6}\]