Plastic household crockery is prepared by using :

1. Melamine and tetrafluoroethane.

2. Malonic acid and hexamethylene imine.

3. Melamine and vinyl acetate.

4. Melamine and formaldehyde.

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

The polymer that is used as a substitute for wool in making commercial fibres is -

1. Melamine

2. Nylon-6, 6

3. Polyacrylonitrile

4. Buna-N
 

The polymer that is addition as well as copolymer is: 

1. PHBV 

2. PVC

3. Buna-S 

4. Neoprene

The incorrect match among the following options is: 

Rubber is heated with sulphur and the process is known as:

1. Galvanization.

2. Vulcanization.

3. Bessemerization.

4. Sulphonation.

Melamine plastic crockery is a copolymer of:

1. HCHO and melamine.

2. HCHO and ethylene.

3. Melamine and ethylene.

4. None of the above.

Polyamide is represented by: 

1. Teflon 

2. Nylon – 6,6

3. Terylene 

4. Bakelite

In the reaction–

Reagent X is–

1. Triethylaluminium and titanium tetrachloride.

2. Triethyl aluminum.

3. Zeigler Natta Catalyst.

4. Both 1 & 3

The polymer that is not prepared by condensation process is: 

1. Melamine

2. Glyptal

3. Dacron

4. Neoprene