314. Show how would you synthesise the following alcohols from appropriate alkenes?

Explain giving reasons:
(i) Boiling point of an alcohol is higher than the corresponding alkane.

(ii) Lower alcohols are soluble in water, while the higher alcohols are not.

(iii) Boiling point of mono hydric alcohols increases with increase in carbon atoms.

Which reaction of phenol with CHCl₃ in NaOH followed by acidification gives salicyaldehyde? Suggest a mechanism for this reaction.