Natural rubber is a polymer of:-

(1) Isoprene

(2) Styrene

(3) Ethylene

(4) Butadiene

Glucose and Mannose are

1. C₁ epimers

2. Anomers

3. C₂ epimers

4. C₄ epimers

Which of the following is used to make non stick cookware ?

1. PVC

2. Polysterene

3. Polyethylene

4. PTFE

0.2 g of an organic compound on complete combustion produces 0.44 g of CO₂. The percentage of carbon is -

1. 50%

2. 60%

3. 70%

4. 80%

An example(s) of co-polymer among the following options is :

1. Nylon-6,6

2. Terylene.

3. Buna-S.

4. All of the above.

Buna-S is a polymer of -

1. Butadiene and Styrene
2. Butene and Styrene
3. Butadiene and Chloroprene
4. Butene and Salicylaldehyde

Product (E) is "

(1) Nylon 66

(2) Nlyon 6

(3) Styrene

(4) Polystyrene

Acetate rayon is prepared from:

(1) acetic acid

(2) glycerol

(3) starch

(4) cellulose

Rubber is heated with sulfur and the process is known:

1. galvanization

2. vulcanization

3. bessemerization

4. sulphonation

Terylene is a:

(1) Polyamide                     

(2) Polyester

(3) Polyether                       

(4) Long chain hydrocarbon