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Class 12th

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Class 12th Polymers

Match the polymers given in Column I with their repeating units given in Column II.

 
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Payal Gupta

Contributor-Level 10

This is a matching answer type question as classified in NCERT Exemplar

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

New answer posted

7 months ago

Class 12th Polymers

Match materials given in Column I with the polymers given in Column II.

Column I

Column II

i. Natural rubber latex

a. Nylon

ii. Wood laminates

b. Neoprene

iii. Ropes and fibers

c. Dacron

iv. Polyester fabric

d. Melamine-formaldehyde resins

v. Synthetic rubber

e. Urea-formaldehyde resins

vi. Unbreakable crockery

f. cis-polyisoprene 
0 Follower 2 Views

P
Payal Gupta

Contributor-Level 10

This is a matching answer type question as classified in NCERT Exemplar

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

New answer posted

7 months ago

Class 12th Polymers

Match the polymers given in Column I with the type of linkage present in them given in Column II.

Column I

Column II

i. Terylene

a. Glycosidic linkage

ii. Nylon

b. Ester linkage

iii. Cellulose

c. Phosphodiester linkage

iv. Protein

d. Amide linkage

v. RNA

  
0 Follower 2 Views

P
Payal Gupta

Contributor-Level 10

This is a matching answer type question as classified in NCERT Exemplar

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

New answer posted

7 months ago

Class 12th Polymers

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
0 Follower 2 Views

P
Payal Gupta

Contributor-Level 10

This is a matching answer type question as classified in NCERT Exemplar

(i) → (d) (ii) → (a) (iii) → (b)

New answer posted

7 months ago

Class 12th Polymers

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. LDP

b. Non-stick cookwares

iii. Melamine-formaldehyde resin

c. Packaging material for shock absorbance

iv. Nylon-6

d. Electrical switches

v. Poly tetrafluoro ethane

e. Squeeze bottles

vi. Polystyrene

f. Tyre, cords
0 Follower 4 Views

P
Payal Gupta

Contributor-Level 10

This is a matching answer type question as classified in NCERT Exemplar

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

New answer posted

7 months ago

Class 12th Polymers

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
0 Follower 2 Views

P
Payal Gupta

Contributor-Level 10

This is a matching answer type question as classified in NCERT Exemplar

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

New answer posted

7 months ago

Class 12th Polymers

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
0 Follower 5 Views

P
Payal Gupta

Contributor-Level 10

This is a matching answer type question as classified in NCERT Exemplar

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

New answer posted

7 months ago

Class 12th Polymers

Note : Match the items of Column I with the items in Column II.

Match the polymer of column I with the 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
0 Follower 3 Views

P
Payal Gupta

Contributor-Level 10

This is a matching answer type question as classified in NCERT Exemplar

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

New answer posted

7 months ago

Class 12th Polymers

Why should the monomers used in addition to polymerization through free radical pathway be very pure?
0 Follower 1 View

P
Payal Gupta

Contributor-Level 10

This is a short answer type question as classified in NCERT Exemplar

Monomers used in addition to polymerization through free radical pathway should be very pure because even the traces of impurities acts like inhibitors. It leads to the formation of polymers with a shorter chain lengths.

New answer posted

7 months ago

Class 12th Polymers

Which type of biomolecules have some structural similarity with synthetic polyamides? What is this similarity?
0 Follower 1 View

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Payal Gupta

Contributor-Level 10

This is a short answer type question as classified in NCERT Exemplar

Proteins have some similar structural similarities with synthetic polyamides. Proteins and polyamides both contain amide linkage.

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