`2.5 ` g sample of copper is dissolved in excess of `H_(2)SO_(4)` to prepare 100 mL of `0.02 M CuSO_(4)` (aq) . 10 mL of `0.02` M solution of `CuSO_(4)` (aq) is mixed with excess of Kl to show the following changes `CuSO_(4) + 2Kl to K_(2)SO_(4) + Cu l_(2)`
`2Cu l_(2) to Cu_(2)l_(2) + l_(2)`
The liberated iodine is titrated with hypo `(na_(2)S_(2)O_(3))` and requires V mL of `0.1` M hypo solution for its complete reduction .
The volume (V) of hypo required is :

Options

A. 2 mL
B. 20 mL
C. 1 mL
D. 10 mL

Answer

A