Question

For the following reaction, select the statement that best describes the change.
${RCH}_{2}OH+PCC\left[C_5{H}_5{NH}^{+}{ClCrO}_3^{-}\right]⟶$

• A. The alcohol is oxidized to an acid, and the $Cr\left(VI\right)$ is reduced
• B. The alcohol is oxidized to an aldehyde, and the $Cr\left(VI\right)$ is reduced
• C. The alcohol is reduced to an aldehyde, and the $Cr\left(III\right)$ is oxidized
• D. The alcohol is oxidized to a keton, and the $Cr\left(VI\right)$ is reduced

Answer 1

Answer: (B)

The alcohol is oxidized to an aldehyde, and the $Cr\left(VI\right)$ is reduced

(Refer to Image)

Alcohols are oxidized to aldehydes and the $C{r}^{6+}$ ion in PCC is reduced to $C{r}^{4+}$ ion.