Question

${CH}_3-{CH}_2-OH\stackrel{Reagent}{\to }{CH}_{3}CHO$

Reagent is:

• A. ${KMnO}_4/hot$
• B. $K_2{Cr}_2{O}_7$
• C. $PCC$
• D. $Cr{O}_3/H^{+}$

Answer 1

Answer: (C)

$PCC$

$C{H}_{3}C{H}_{2}OH\stackrel{PCC}{\to }C{H}_{3}CHO$

Conversion of the primary alcohol to an aldehyde is done with the help of $PCC$ (Pyridinium Chlorochromate).

In presence of other oxidizing agents like $KMn{O}_4$, $K_{2}C{r}_2{O}_7$ and $Cr{O}_3$, the ethyl alcohol will be converted into acetic acid.