Question

Give the formulae of [A] and [B]
`CH_(3)MgBr+CO_(2)overset((i)"Dry ether")underset((ii)H^(+)//H_(2)O)rarr[A]overset(PCl_(5))rarr[B]`

Answer 1

`underset("Methyl mag. bromide")underset()(CH_(3)MgBr)+CO_(2)overset((i)"Dry ether")underset((ii)H^(+)//H_(2)O)rarrunderset("Acetic acid[A]")underset()(CH_(3)COOH)overset(PCl_(5))rarrunderset("Acetyl chloride[B]")underset()(CH_(3)COCl.)`