Question

Identify the correct statements.

• A. $C _{2} H _{5}- O - CH _{3}$ on cleavage with $PCl _{5}$ gives equimolar mixture of ethyl chloride and methyl chloride
• B. $ClCH _{2} CH = CH _{2}$ is more reactive than $Br CH _{2} CH _{2} CH _{3}$ to prepare ether using Williamson's synthesis
• C. Anisole can be prepared by the reaction of $CH _{3} ONa$ on chlorobenzene
• D. Sodium metal can be used to dry diethyl ether, benzene and ethyl alcohol.

Answer 1

Answer: (A), (B)

Due to resonance, $C - Cl$ bond attains a double bond character, hence to remove $C$ atom is difficult from chlorobenzene unlike in alkyl halides. Ethanol (due to the presence of active $H$ atom) racts with sodium metal while ether and benzene have no replaceable $H$ atoms. Hence ethanol cannot be used to dry sodium.