Match the polymers given in Column-I with their repeating units given in Column-II. Choose the correct option from the codes given below :
Column-I | Column-II |
(a) Polystyrene | (p) |
(b) Novolac | (q) |
(c) Buna-N | (r) |
(d) Acrilan | (s) |
(a) | (b) | (c) | (d) | |
1. | (s) | (r) | (q) | (p) |
2. | (r) | (p) | (s) | (q) |
3. | (p) | (q) | (r) | (s) |
4. | (q) | (s) | (p) | (r) |
The polymer that can't be prepared by condensation polymerization is :
1. Dacron
2. Nylon-6
3. Glyptal
4. PTFE
The natural polymer among the following options is:
1. Poly(Butadiene-styrene)
2. Polybutadiene
3. Poly(Butadiene-acrylonitrile)
4. Cis-1,4-polyisoprene
On the basis of mode of formation, polymers can be
classified as:
1. Addition polymers only.
2. Condensation polymers only.
3. Co-polymers.
4. Both addition and condensation polymers.
Low-density polythene is prepared by -
1. Free-radical polymerization.
2. Cationic polymerization.
3. Anionic polymerization.
4. Ziegler-Natta polymerization.
Which of the following is a synthetic polymer?
1. Phenol-formaldehyde resin.
2. Proteins.
3. Polysaccharides.
4. Natural rubber.
Teflon, polystyrene, and neoprene are all -
1. Monomers.
2. Co-polymers.
3. Homopolymers.
4. Condensation polymers.
PVC as obtained after polymerization is -
1. Soft and pliable.
2. Hard, brittle, and transparent.
3. Hard and infusible.
4. None of the above.
The compound used in the manufacture of terylene is:
1. Ethylene
2. Vinyl chloride
3. Ethylene glycol
4. Adipic acid
Polymer that is used to make nonstick cookware is:
1. PVC
2. Polystyrene
3. Polythene (terephthalate)
4. Polytetrafluoroethylene