Bakelite

Q.

In Reimer-Tiemann reaction the major product obtained is:

1. Salol

2. Aspirin

3. Salicylic acid

4. Salicylaldehyde

Q.

Terylene is a polymer obtained from

1. Ethylene glycol and glycerol

2. Ethylene glycol and glyceraldehyde

3. Ethylene glycol and terephthalic acid

4. None of the above

Q.

Bakelite is a______

1. Resin in alcohol

2. Phenol-acetaldehyde Resin

3. Phenol-formaldehyde Resin

4. Phenol-propionaldehyde Resin

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)-(iii), (B)-(i), (C)-(ii), (D)-(iv)

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

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

Q.

Which of the following is a thermosetting plastic?

1. PVC

2. Teflon

3. Bakelite

4. Nylon

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

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

Q. Match the polymers in Column I with their main uses in Column II and choose the correct answer:
$\begin{array}{cc}ColumnI& ColumnII\\ A.Polystyrene& 1.Paintsandlacquers\\ B.Glyptal& 2.Raincoats\\ C.Polyvinylchloride& Manufactureoftoys\\ D.Bakelite& Computerdiscs\end{array}$

1. A - 2 B - 1 C - 3 D - 4
2. A - 3 B - 1 C - 2 D - 4
3. A - 2 B - 4 C - 3 D - 1
4. A - 3 B - 4 C - 2 D - 1

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. Common monomer present in melamine formaldehyde polymer and bakelite is ______.

1. Formaldehyde
2. Phenol
3. Melamine
4. Ethylene glycol

Q.

Write the monomers used for getting the following polymers.

Polyvinyl chloride

Teflon

Bakelite

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. Only B
3. B, D
4. Only C

Q.

Q.

[DCE 2002; MHCET 2004]

1. Liquid polymer of nylon 6

2. Solid polymer of nylon 66

3. Liquid polymer of nylon 66

4. Gaseous polymer of nylon 66

Q. Polymer obtained by condensation polymerization is :

1. polythene
2. PVC
3. bakelite
4. teflon

Q. What do you know about Bakelite?

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

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

Q. Which one of these are thermosetting polymers?

1. Bakelite
2. Polythene
3. Polystyrene
4. Nylon-6

Q. List-l List-ll
A)Rayon 1)$C{H}_{2}O+C_6{H}_{5}OH$

1. A-4 B-3 C-1 D-2
2. A- 1 B-3 C-2 D-4
3. A-4 B-2 C-3 D-1
4. A-2 B-4 C-3 D-1

Q. Differentiate between thermoplastic and thermosetting polymer. Give one example of each.

Q. Which one of the following is classified as a condensation polymer?

1. Dacron
2. Neoprene
3. Teflon
4. Acrylonitrile

Q. Name the monomers present in the following polymers:
(a) Bakelite
(b) Buna- N

Q. Write the names of monomers of the following polymers :
(a) Bakelite
(b) Terylene

Q. Propylene ===========>. Polypropylene.which of the following
(polymerisation)
Are produced at low pressures and have comparatively high melting point?
a) atactic only. B)atactic and syndiotactic
C)atactic and isotactic d)syndiotactic and isotactic

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

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

Q. The monomer(s) used to prepare polyvinyl polythene is:

1. 1, 3-butadiene and acrylonitrile
2. vinyl chloride and ethane
3. ethene
4. 1, 3-butadiene

Q. Which of the following are highly crossed linked polymers?

1. Alkyd resin
2. Melamine
3. Bakelite
4. Urea - formaldehyde

Q. Bakelite is obtained from phenol by reaction with : $1$

1. Acetaldehyde
2. Chlorobenzene
3. Formaldehyde
4. Acetal

Q.

Bakelite is obtained from phenol by reacting with

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

Q. Which of the following is not correct regarding terylene?

1. Step - growth polymer
2. Synthetic fiber
3. Condensation polymer
4. Dacron
5. Thermosetting plastic

Q. Which of the following statements are correct about phenol-formaldehyde resin?

1. Novolac or resin is a liner polymer and is used in the manufacture of adhesive.
2. Bakelite is a cross-linked polymer and is used in making switches and plugs.
3. Novolac is prepared when (P/F) (phenol/formaldehyde) ratio is greater than $1$, whereas bakelite is prepared when (P/F) ratio is less than $1$.
4. Novolac is prepared when P/F $<1$ and bakelite is prepared when P/F $>1$.