Melamine plastic crockery is a copolymer of:

1. HCHO and melamine.

2. HCHO and ethylene.

3. Melamine and ethylene.

4. None of the above.

Subtopic:  Polymers: Natural & Synthetic, Biodegradable & Non Biodegradable |
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Bakelite is prepared by the reaction between

1. Urea and formaldehyde

2. Ethylene glycol

3. Phenol and formaldehyde

4. Tetramethylene glycol

Subtopic:  Polymers: Natural & Synthetic, Biodegradable & Non Biodegradable |
 80%
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Which one is protein fibre ?

1. Cotton

2. Rayon

3. Silk

4. Polyster

Subtopic:  Classification - Methods of Polymerization & Copolymerization |
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Synthetic human hair wigs are made from a copolymer of vinyl chloride and acrylonitrile and is called:

1. PVC

2. polyacrylonitrile

3. cellulose

4. dynel

Subtopic:  Application of Polymers |

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Thermoplastics are:

1. Linear polymers

2. Soften or melt on heating 

3. Molten polymer can be moulded in desired shape

4. All of the above

Subtopic:  Polymers: Natural & Synthetic, Biodegradable & Non Biodegradable |
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Match the polymer of column I with correct monomer of column II.
   Column I                                                     Column II

(i) High density polythene                                  (a) Isoprene
(ii) Neoprene                                                     (b) Tetrafluoroethene
(iii) Natural rubber                                              (c) Chloroprene
(iv) Teflon                                                           (d) Acrylonitrile
(v) Acrilan                                                           (e) Ethene

(1) (i) → (e) (ii) → (c) (iii) → (a) (iv) → (b) (v) → (d)

(2) (i) → (a) (ii) → (c) (iii) → (e) (iv) → (b) (v) → (d)

(3) (i) → (b) (ii) → (c) (iii) → (a) (iv) → (e) (v) → (d)

(4) (i) → (e) (ii) → (d) (iii) → (a) (iv) → (b) (v) → (c)

Subtopic:  Polymers: Natural & Synthetic, Biodegradable & Non Biodegradable |
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Match the polymers given in Column I with their chemical names given in Column II.
     Column I                                               Column II

(i) Nylon 6                                                 (a) Polyvinyl chloride
(ii) PVC                                                      (b) Polyacrylonitrile
(iii) Acrilan                                                 (c) Polycaprolactum
(iv) Natural rubber                                      (d) Low density polythene
(v) LDP                                                      (e) cis-polyisoprene

1. (i) → (a) (ii) → (c) (iii) → (b) (iv) → (e) (v) → (d)

2. (i) → (c) (ii) → (a) (iii) → (b) (iv) → (e) (v) → (d)

3. (i) → (c) (ii) → (b) (iii) → (a) (iv) → (e) (v) → (d)

4. (i) → (c) (ii) → (a) (iii) → (d) (iv) → (e) (v) → (b)

Subtopic:  Classification - Methods of Polymerization & Copolymerization |
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Match the polymers given in Column I with their commercial names given in Column II.
    Column I                                                     Column II

(i) Polyester of glycol and phthalic acid                   (a) Novolac
(ii) Copolymer of 1, 3-butadiene and styrene          (b) Glyptal
(iii) Phenol and formaldehyde resin                        (c) Buna-S
(iv) Polyester of glycol and terephthalic acid           (d) Buna-N
(v) Copolymer of 1, 3-butadiene and acrylonitrile     (e) Dacron

1. (i) → (a) (ii) → (c) (iii) → (b) (iv) → (e) (v) → (d)

2. (i) → (b) (ii) → (a) (iii) → (c) (iv) → (e) (v) → (d)

3. (i) → (b) (ii) → (c) (iii) → (a) (iv) → (e) (v) → (d)

4. (i) → (e) (ii) → (c) (iii) → (a) (iv) → (b) (v) → (d)

Subtopic:  Polymers: Natural & Synthetic, Biodegradable & Non Biodegradable |
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Match the polymers given in Column I with their main applications given in Column II.
 

Column I

Column II

(i)

Bakelite

(a)

Unbreakable crockery

(ii)

Low-density polythene

(b)

Non-stick cookwares

(iii)

Melamine-formaldehyde resin

(c)

Packaging material for shock absorbance

(iv)

Nylon 6

(d)

Electrical switches

(v)

Polytetrafluoroethane

(e)

Squeeze bottles

(vi)

Polystyrene

(f)

Tyre, cords

1. (i) → (a) (ii) → (e) (iii) → (d) (iv) → (f) (v) → (b) (vi) → (c)

2. (i) → (e) (ii) → (d) (iii) → (a) (iv) → (f) (v) → (b) (vi) → (c)

3. (i) → (d) (ii) → (e) (iii) → (b) (iv) → (f) (v) → (a) (vi) → (c)

4. (i) → (d) (ii) → (e) (iii) → (a) (iv) → (f) (v) → (b) (vi) → (c)

Subtopic:  Application of Polymers |
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Match the polymers given in Column I with the preferred mode of polymerisation followed by their monomers.
   Column I                 Column II
(i) Nylon-6,6                (a) Free radical polymerisation
(ii) PVC                       (b) Ziegler-Natta polymerisation or coordination polymerisation
(iii) HDP                      (c) Anionic polymerisation
                                   (d) Condensation polymerisation

1. (i) → (d) (ii) → (a) (iii) → (b)

2. (i) → (c) (ii) → (a) (iii) → (b)

3. (i) → (d) (ii) → (c) (iii) → (b)

4. (i) → (b) (ii) → (a) (iii) → (c)

 

Subtopic:  Classification - Methods of Polymerization & Copolymerization |
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