Condensation Polymerization

Q.

A condensation polymer among the following is:

1. Teflon

2. Polystyrene

3. Dacron

4. PVC

Q.

How is dacron obtained from ethylene glycol and terephthalic acid?

Q.

Orlon is a polymer of:

1. Tetrafluoroethylene

2. Acrylonitrile

3. Ethanoic acid

4. Benzene

Q.

Assertion (A) Polyamides are best used as fibres because of high tensile strength.

Reason (R) Strong intermolecular forces (like hydrogen bonding within polyamides) lead to close packing of chains and increase the crystalline character. hence, provide high tensile strength to polymers.

(a) Assertion and Reason both are correct statement But reason does not explain Assertion.

(b) Assertion and Reason both are correct statement and Reason explains the Assertion.

(c) Both assertion and reason are wrong statements.

(d) Assertion is correct statement and Reason is wrong statement.

(e) Assertion is wrong statement and reason is correct statement.

Q. Melamine polymer is a copolymer of:

1. Melamine and acetaldehyde
2. None of the above
3. Melamine and formaldehyde
4. Phenol and formaldehyde

Q. Match $List-I$ (Monomer) with $List-II$ (Polymer) and select the correct answer using the codes given below the lists:
$\begin{array}{cc}\text{List-I}& \text{List-II}\\ \left(I\right)\text{Hexamethylenediamine}& \text{A.Bakelite}\\ \left(II\right)\text{Phenol}& \text{B. Dacron}\\ \left(III\right)\text{Phthalic acid}& \text{C. Glyptal}\\ \left(IV\right)\text{Terephthalic acid}& \text{D. Melamine}\\ & \text{E. Nylon-6, 6}\end{array}$

1. $I-D,II-C,III-A,IV-B$
2. $I-D,II-C,III-A,IV-B$
3. $I-E,II-A,III-B,IV-C$
4. $I-E,II-A,III-C,IV-B$

Q.

Which polymer has chiral, monomer(s)?

1. Buna-N

2. Neoprene

3. Nylon $6,6$

4. PHBV

Q. Assertion : Nylon-6 is a condensation polymer.
Reason : It is a polymer of caprolactum.

1. If both assertion and reason are false
2. If both assertion and reason are true but reason is not the correct explanation of assertion
3. If assertion is true but reason is false
4. If both assertion and reason are true and reason is the correct explanation of assertion

Q.

Which of the following organic compounds polymerizes to form the polyester dacron ?

1. Benzoic acid and para $HO-\left(C_6{H}_4\right)-OH$

2. Benzoic acid and ethanol

3. Propylene and para $HO-\left(C_6{H}_4\right)-OH$

4. Terephthalic acid and ethylene glycol

Q. Bakelite is obtained from phenol and formaldehyde. The initial reaction between the two compounds is an example of:

1. Aromatic electrophilic substitution
2. Aromatic nucleophilic substitution
3. Free radical reaction
4. Aldol reaction

Q.

Glucose polymers are known as?

Q.

Nylon-6, 6 is obtained by the process of:

1. Synthetic polymerization

2. Natural rubber

3. Condensation polymerization

4. Addition polymerization

Q.

Which of the following polymers are condensation polymers?

(a) Bakelite

(b) Teflon

(c) Buty rubber

(d) Melamine formaldehyde resin

Q. 44. Which polymer have C-O-C linkage? 1) Bakelite 2)Melamine formaldehyde resin 3)Starch 4) Both 2 & 3

Q. Preparation of nylon from hexamethylene diamine and adipic acid is an example of:

1. Both (b) and (d)
2. Addition polymerisation
3. Condensation polymerisation
4. Graft polymerisation

Q.

In which of the following polymers ethylene glycol is one of the monomer units?

Q. What makes HDPE have density and strength as compared to LDPE

Q. Terylene is

1. An addition polymer with only four carbon atoms in every repeating unit
2. A condensation polymer with two nitrogen atoms in every repeating unit
3. An addition polymer with a benzene ring in every repeating unit
4. A condensation polymer with a benzene ring in every repeating unit

Q. Which of the following is a condensation copolymer?

1. Styrene
2. Buna-S
3. Bakelite
4. Nylon- 6

Q.

A polymer with the high chemical stability has M.P: 327⁰C and the density of complete crystalline sample is 2.3 g/cm³ it can be

1. PVC
2. Melamine
3. Bakelite
4. Teflon

Q. Which is used in making of thermocol ?

1. Polypropylene
2. Polystyrene
3. Polyethylene
4. High density polyethylene

Q. Bakelite is obtained from phenol and formaldehyde. The initial reaction between the two compounds is an example of:

1. Aromatic electrophilic substitution
2. Aromatic nucleophilic substitution
3. Free radical reaction
4. Aldol reaction

Q. Match $List-I$ (Monomer) with $List-II$ (Polymer) and select the correct answer using the codes given below the lists:
$\begin{array}{cc}\text{List-I}& \text{List-II}\\ \left(I\right)\text{Hexamethylenediamine}& \text{A.Bakelite}\\ \left(II\right)\text{Phenol}& \text{B. Dacron}\\ \left(III\right)\text{Phthalic acid}& \text{C. Glyptal}\\ \left(IV\right)\text{Terephthalic acid}& \text{D. Melamine}\\ & \text{E. Nylon-6, 6}\end{array}$

1. $I-E,II-A,III-B,IV-C$
2. $I-E,II-A,III-C,IV-B$
3. $I-D,II-C,III-A,IV-B$
4. $I-D,II-C,III-A,IV-B$

Q.

Q.

Like synthetic fibres, plastic is also _____________

Q.

Which of the following polymers are condensation polymers?

Q. The difference in the densities of low-density (LDP) and high-density polymers (HDP) is due to the fact that:

1. LDP are highly branched structures while HDP consists of closely packed linear molecules
2. LDP are linear chains while HDP are branched chains of polythene
3. both LDP and HDP are unbranched linear chains with different lengths
4. at high temperature, the density of polymer is reduced

Q. Which of the following statements is/are incorrect?

1. Gutta-Percha is a product of trans-polymerisation of 2-methyl-1, 3-butadiene
2. Kevlar is a condensation polymer of 1, 4-phenylene-diamine and terepthalic acid
3. Teflon is a very reactive polymer due to the presence of 4 fluorine atoms
4. Cellulose is hydrophilic in nature and it is soluble in water

Q. Match the column I with column II and mark the appropriate choice.

	Column I		Column II
(A)	PVC	(i)	Rubber
(B)	Condensation polymer	(ii)	Thermoplsatic
(C)	Polysaccharide	(iii)	Dacron
(D)	Elastomer	(iv)	Natural Polymer

1. (A) $\to$ (ii), (B) $\to$ (iii), (C) $\to$ (iv), (D) $\to$ (i)
2. (A) $\to$ (i), (B) $\to$ (ii), (C) $\to$ (iv), (D) $\to$ (iii)
3. (A) $\to$ (iv), (B) $\to$ (i), (C) $\to$ (iii), (D) $\to$ (ii)
4. (A) $\to$ (iii), (B) $\to$ (iv), (C) $\to$ (i), (D) $\to$ (ii)

Q.

One of the ways in which monomers are converted to polymeric form is by [DCE 2002]

1. Protonation of monomers

2. Hydrolysis of monomers

3. Condensation reaction between monomers

4. None of these