Question

melting point are normally highest for tertiary amides , secondary amides , primary amides , aminnes

Answer 1

Dear student,

Melting point is highest for primary amides. Highest melting point for primary amides are attributed to the strongest intermolecular H-bonding. I​ntermolecular H-bonding is less in secondary amides and no i​ntermolecular H-bonding in tertiary amides. I​ntermolecular H-bonding in primary amides are stronger than amines because in primary amides both >CO and -NH₂ groups are involve in H-bonding.

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