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