| List - I | List - II |
|---|---|
| (A) Normal goods | (I) These goods are consumed together |
| (B) Inferior goods | (II) Demand for the good decreases as income of the consumer increases |
| (C) Substitute goods | (III) These goods are used in place of each other |
| (D) Complementary goods | (IV) Demand for the good increases as income of consumer increases |

Amines are usually formed from amides, imides, halides, nitro compounds, etc. They exhibit hydrogen bonding which influences their physical properties. In alkyl amines, a combination of electron releasing, steric and H-bonding factors influence the stability of the substituted ammonium cations in protic polar solvents and thus affect the basic nature of amines. Alkyl amines are found to be stronger bases than ammonia. Amines being basic in nature, react with acids to form salts. Aryldiazonium salts, undergo replacement of the diazonium group with a variety of nucleophiles to produce aryl halides, cyanides, phenols and arenes.