In which of the following reactions, the product is not correct?

1. $\mathrm{CH}_3 \mathrm{CHO} \stackrel{\mathrm{LiAlH}_4}{\longrightarrow} \mathrm{CH}_3 \mathrm{CH}_2 \mathrm{OH}$
2. 
   
3. 
   
4. $\mathrm{CH}_3 \mathrm{CH}_2 \mathrm{CHO} \stackrel{\mathrm{KMnO}_4}{\longrightarrow} \mathrm{CH}_3 \mathrm{CH}_2 \mathrm{COOH}$

Solution

Clemmensen reduction:

Asked in: AP EAMCET 2016

Practice more Hydrocarbons questions on Aicharya