(a) Explain why cleavage of phenyl ethers with HBr always produces phenol and alkyl bromides and not bromobenzene and alkanols.
(b) Give reasons for the following:
(i) The dipole moment of diethyl ether (1.18D) is lower than that of water (1.84D).
(ii) The C-O-C bond angle in ethers is higher than H-O-H angle in water though oxygen is sp3 hybridized in both the cases.
(iii) Dimethyl ether is completely miscible with water but diethyl ether is soluble in water to a small extent.