The initial reaction in the formation of bakelite is an example of:

(1) Aromatic electrophilic substitution.

(2) Aromatic nucleophilic substitution.

(3) Free radical reaction.

(4) Aldol reaction.

PMMA is the polymer of.

1. methylmethacrylate

2. methylacrylate

3. methacrylate

4. ethylacrylate

Condensation of caprolactam gives:

1. nylon-6,6               
2. nylon-6
3. nitrile rubber
4. nylon-6,10
 

Natural rubber has

1. All trans-configuration.

2. Alternate cis - and trans-configuration.

3. Random cis - and trans-configuration.

4. All cis-configuration.

Biodegradable polymer which can be produced from glycine and aminocaproic acid is

1. Nylon- 2 - Nylon - 6

2. PHBV

3. Buna-N

4. Nylon-6, 6

Caprolactam is used for the manufacture of-

1. Nylon-6
2. Polythene
3. Terylene
4. Nylon-6 6

Dacron is a polymer of : 

1. Propylene and para HO—(C₆H₄)—OH

2. Benzoic acid and ethanol

3. Terephthalic acid and ethylene glycol

4. Benzoic acid and para HO—(C₆H₄)—OH

Which of these is not a monomer for a high molecular mass silicone polymer?

1. MeSiCl₃

2. Me₂SiCl₂

3. Me₃SiCl

4. PhSiCl₃

Which of the following is the monomer of neoprene ?

1. CH₂=CH-c=CH

2. CH₂=$\begin{array}{c}\underset{|}{\mathrm{C}}\\ {\mathrm{CH}}_3\end{array}$-CH=CH₂

3. $\begin{array}{ccccccc}{\mathrm{CH}}_2& =& \underset{\mathrm{Cl}}{\underset{|}{\mathrm{C}}}& -& \mathrm{CH}& =& {\mathrm{CH}}_2\end{array}$

4. CH₂=CH-CH=CH₂

Which of the following statements is false?

1. Artificial silk is derived from cellulose

2. Nylon-66 is an example of elastomer

3. The repeat unit in natural rubber is isoprene

4. Both starch and cellulose are polymers of glucose