The correct order of boiling point for primary `(1^(@))`. Secondary `(2^(@))` and tertiary `(3^(@))` alcohol is

The correct order of boiling points for primary ( 1^@ ), secondary ( 2^@ ) and tertiary ( 3^@ ) alcohols is

The correct order of melting and boiling points of primary (1^(@)) , secondary and tertiary (3^(@)) alkyl halides is :