1.
Which one of the following is a chain growth polymer ?
A.
Nucleic acid
B.
Polystyrene
C.
Protein
D.
Starch
Answer :
Polystyrene
2.
Which of the following is not a characteristic of thermosetting polymers?
A.
Linear or slightly branched long chain polymers
B.
Heavily branched and cross-linked polymers
C.
Become infusible on moulding
D.
Cannot be remoulded or reused on heating
Answer :
Linear or slightly branched long chain polymers
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3.
Nylon threads are made of
A.
polyester polymer
B.
polyamide polymer
C.
polyethylene polymer
D.
polyvinyl polymer
Answer :
polyamide polymer
4.
Match the column I with column II and mark the appropriate choice.
|
Column I |
|
Column II |
a. |
$$PVC$$ |
1. |
Rubber |
b. |
Condensation polymer |
2. |
Thermoplastic |
c. |
Polysaccharide |
3. |
Dacron |
d. |
Elastomer |
4. |
Natural polymer |
A.
a - 2, b - 3, c - 4, d - 1
B.
a - 1, b - 2, c - 4, d - 3
C.
a - 3, b - 4, c - 1, d - 2
D.
a - 4, b - 1, c - 3, d - 2
Answer :
a - 2, b - 3, c - 4, d - 1
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5.
Natural rubber is a polymer of
A.
butadiene
B.
ethyne
C.
styrene
D.
isoprene
Answer :
isoprene
Discuss Question
Polyisoprene is the natural rubber which is the polymer of isoprene.
6.
Which of the following polymers of glucose is stored by animals?
A.
Cellulose
B.
Amylose
C.
Amylopectin
D.
Glycogen
Answer :
Glycogen
Discuss Question
Glycogen, a polymer of glucose is stored in animal body.
7.
Nylon 6, 6 is a polyamide obtained by the reaction of
A.
$$COOH{\left( {C{H_2}} \right)_4}COOH + $$ $$N{H_2}{C_6}{H_4}N{H_2} - \left( p \right)$$
B.
$$COOH{\left( {C{H_2}} \right)_4}COOH + $$ $$N{H_2}{\left( {C{H_2}} \right)_6}N{H_2}$$
C.
$$COOH{\left( {C{H_2}} \right)_6}COOH + $$ $$N{H_2}{\left( {C{H_2}} \right)_4}N{H_2}$$
D.
$$COOH{C_6}{H_4}COOH - \left( p \right) + $$ $$N{H_2}{\left( {C{H_2}} \right)_6}N{H_2}$$
Answer :
$$COOH{\left( {C{H_2}} \right)_4}COOH + $$ $$N{H_2}{\left( {C{H_2}} \right)_6}N{H_2}$$
8.
Which of the following statements is false?
A.
Artificial silk is derived from cellulose
B.
Nylon-66 is an example of elastomer
C.
The repeat unit in natural rubber is isoprene
D.
Both starch and cellulose are polymers of glucose
Answer :
Nylon-66 is an example of elastomer
Discuss Question
Nylon-66 is a fibre not a elastomer. As in it the forces of attraction are $$H$$ - bonding.
All other given statements are true.
9.
The polymer containing strong intermolecular forces e.g. hydrogen bonding, is
A.
teflon
B.
nylon 6, 6
C.
polystyrene
D.
natural rubber
Answer :
nylon 6, 6
Discuss Question
Nylon 6 - 6 has amide linkage capable of forming hydrogen bonding.
10.
Match the column I with column II and mark the appropriate choice.
|
Column I |
|
Column II |
a. |
Buna-$$S$$ |
1. |
Thermosetting |
b. |
Polyamides |
2. |
Fibres |
c. |
Polyvinyls |
3. |
Elastomer |
d. |
Urea-formaldehyde |
4. |
Thermoplastics |
A.
a - 4, b - 3, c - 1, d - 2
B.
a - 2, b - 1, c - 3, d - 4
C.
a - 3, b - 2, c - 4, d - 1
D.
a - 1, b - 4, c - 2, d - 3
Answer :
a - 3, b - 2, c - 4, d - 1
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