Incorrect statement regarding cross-linked or network polymers is:

1.	They contain covalent bonds between various linear polymer chains.
2.	They are formed from bi and tri functional monomers.
3.	Examples are bakelite and melamine.
4.	They contain strong covalent bonds in same polymer chain.

Natural rubber has:

1. All trans-configuration
2. Alternate cis - and trans-configuration
3. Random cis - and trans-configuration
4. All cis-configuration

Caprolactam is used for the manufacture of:

1. Nylon - 6

2. Teflon

3. Terylene

4. Nylon - 6, 6

A biodegradable polymer that can be prepared from glycine and aminocaproic acid is:
1. Nylon 2-nylon 6
2. PHBV
3. Buna-N
4. Nylon-6,6

The example of a thermosetting polymer among the following options is:

1.
2.
3.
4.

Which of the following organic compounds polymerizes to form the polyester Dacron?

1. Propylene and para $HO-\left(C_6{H}_4\right)-OH$

2. Benzoic acid and ethanol 

3. Terephthalic acid and ethylene glycol

4. Benzoic acid and para $HO-\left(C_6{H}_4\right)-OH$

Nylon is an example of:

1. Polysaccharide
2. Polyamide
3. Polythene
4. Polyester

Which one of the following is not a condensation polymer?

1. Melamine

2. Glyptal

3. Dacron

4. Neoprene

The polymer that can be classified as polyster polymer is:
1. Bakelite
2. Melamine
3. Nylon-66
4. Terylene

The structure of neoprene polymer is:

1.		2.
3.		4.