Select the correct option based on statements below:
Assertion (A): | Nylon-2,Nylon-6 is a biodegradable polymer. |
Reason (R): | Glycine is one of the monomers of Nylon-2,6. |
1. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
2. | Both (A) and (R) are true but (R) is not the correct explanation of (A). |
3. | (A) is true but (R) is false. |
4. | Both (A) and (R) are false. |
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) |
Select the correct option based on statements below:
Assertion (A): | Vulcanisation of rubber is heating of synthetic rubber with sulfur. |
Reason (R): | Stiffness is lost in vulcanization. |
1. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
2. | Both (A) and (R) are true but (R) is not the correct explanation of (A). |
3. | (A) is true but (R) is false. |
4. | Both (A) and (R) are false. |
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
Monomer of neoprene is:
1. | |
2. | |
3. | |
4. |
Condensation of caprolactam gives:
1. Nylon-6,6
2. Nylon-6
3. Nitrile rubber
4. Nylon-6,10
Of the following the step growth polymer is :
1. Bakelite
2. Polyethylene
3. Teflon
4. PVC
The catalyst used in the manufacture of polythene by Ziegler method is:
1. Titanium tetrachloride and triphenyl galium
2. Titanium tetrachloride and triethyl aluminium
3. Titanium dioxide
4. Titanium isopropoxide
The monomer units of PTFE are:
1. Cl2CH-CH3
2. F2C=CF2
3. F3C-CF3
4. FClC=CF2