Question

$K_{2}C{r}_2{O}_7$ in acidic medium converts into

• A. $C{r}^{4+}$
• B. $C{r}^{2+}$
• C. $C{r}^{3+}$
• D. $C{r}^{5+}$

Answer 1

The correct option is C $C{r}^{3+}$

$C{r}_2{O}_7^{2-}+14H^{+}+6e^{-}⟶2C{r}^{3+}+7H_{2}O$
So, $K_{2}C{r}_2{O}_7$ converts into $C{r}^{3+}$ in acidic medium.
Hence, option (b) is correct answer.