Question

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

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

Answer 1

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

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