Module 6: Amino Acids & Amides (6.2.2)

Question 1

Basicity

Answer 1

1. Amine( NH2) group is basic and able to react with acids to form salts.

Question 2

Acidity

Answer 2

1. Carboxyl group reacts with aqueous alkali to form salt and water.

Question 3

Esterification

Answer 3

1. Heating with alcohol in presence of conc H2S04

Question 4

Amides

Answer 4

1. Formed from an acyl chloride and ammonia/amine.
2. Primary amide: 1 C attached to N.
3. Secondary amide: 2 C attached to N.
4. Tertiary amide: 3 C attached to N.

Question 5

Optical Isomerism

Answer 5

1. Occurs in a molecule with a chiral centre: C attached to 4 DIFFERENT groups/atoms.
2. 2 Non superimposable mirror image structures called enantiomers.
3. 3D tetrahedral structure to show groups around chiral C