Question

The conversion: $EtMgBr\to C_3{H}_{5}OH$ takes place with the help of

• A. $HCHO$ in water
• B. $HCHO$ in ether
• C. $HCOOH$
• D. water only

Answer 1

The correct option is B $HCHO$ in ether

The Grignard reagent is highly reactive and in presence of water or in acidic medium, it quickly produces alkane by taking $H^{+}$ from water or the acid. Its reaction is carried out in ether solvent and here $HCHO$ in ether gives the desired product.
Hence, (b) is correct.