Amines ,Amino Acids And Polymers

Question 1

Aliphatic amine

Answer 1

Nitrogen attached to at least one straight alkyl chain

Question 2

Aromatic amine

Answer 2

Nitrogen attached to benzene

Question 3

How are amines classified into primary secondary and tertiary

Answer 3

By the number of alkyl or aryl groups attached

Question 4

Why do amines act as bases

Answer 4

The lone pair of electrons on the nitrogen can accept a proton

Question 5

What mechanism do amines use to react

Answer 5

Nucleophillic substitution

Question 6

Preparation of aliphatic amines

Answer 6

Form salt from haloalkane and ammonia then add aqueous alkali to generate amine from the salt

Question 7

Formation of secondary and tertiary amines

Answer 7

React primary amide with haloalkane to form salt then react with alkali (NaOH)

Question 8

Preparation of aromatic amine

Answer 8

Heat nitrobenzene under reflux with tin and hydrochloride acid to form salt

React with excess NaOH to produce aromatic amine