Bakelite

Q. Which among the following is polymer ‘A’?

1. Novolac
2. Terylene
3. Bakelite
4. Melamine

Q.

Bakelite is obtained from phenol by reacting with

1. CH₃CHO
2. CH₃COCH₃
3. HCHO
4. (CH₂OH)₂

Q. Bakelite can be classified as which of the following polymers: A. Thermosetting polymers B. Cross-linked polymers C. Elastomers D. Thermoplastic polymers

1. A, B
2. B, D
3. Only B
4. Only C

Q. Which among the following is polymer ‘B’?

1. Melamine
2. Novolac
3. Terylene
4. Bakelite

Q. Which among the following is polymer ‘A’?

1. Melamine
2. Terylene
3. Novolac
4. Bakelite

Q.

The Bakelite is made 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 condensation

Q.

Bakelite is formed by polymerisation between

1. tetrafluoro ethene molecules

2. urea and formaldehyde molecules

3. phenol and formaldehyde molecules

4. acrylonitrile molecules

Q.

Match the polymers in column-A with their main uses in column-B and choose the correct answer:

$\begin{array}{cc}\text{Column-A}& \text{Column-B}\\ \text{(A) Polystyrene}& \text{(i) Paints and lacquers}\\ \text{(B) Glyptal}& \text{(ii) Rain coats}\\ \text{(C) Polyvinyl chloride}& \text{(iii) Manufacture of toys}\\ \text{(D) Bakelite}& \text{(iv) Computer discs}\end{array}$

(IIT-JEE-2015(M))

1. (A)-(ii), (B)-(i), (C)-(iii), (D)-(iv)

2. (A)-(ii), (B)-(iv), (C)-(iii), (D)-(i)

3. (A)-(iii), (B)-(i), (C)-(ii), (D)-(iv)

4. (A)-(iii), (B)-(iv), (C)-(ii), (D)-(i)

Q. Which of the following properties is not true about polymer ‘B’?

1. It is a cross-linked polymer
2. It can be reused
3. It has heavily branched molecules
4. a, b, c

Q.

Match the polymers in column-A with their main uses in column-B and choose the correct answer:

$\begin{array}{cc}\text{Column-A}& \text{Column-B}\\ \text{(A) Polystyrene}& \text{(i) Paints and lacquers}\\ \text{(B) Glyptal}& \text{(ii) Rain coats}\\ \text{(C) Polyvinyl chloride}& \text{(iii) Manufacture of toys}\\ \text{(D) Bakelite}& \text{(iv) Computer discs}\end{array}$

(IIT-JEE-2015(M))

1. (A)-(ii), (B)-(i), (C)-(iii), (D)-(iv)

2. (A)-(ii), (B)-(iv), (C)-(iii), (D)-(i)

3. (A)-(iii), (B)-(iv), (C)-(ii), (D)-(i)

4. (A)-(iii), (B)-(i), (C)-(ii), (D)-(iv)

Q. Which one among the following is a thermosetting plastic?

1. PVC
2. PVA
3. Bakelite
4. Perspex

Q.

Which of the following is an example of condensation polymer?

1. Nylon
2. All of these
3. Bakelite
4. Urea-formaldehyde resin