1.
What is a polymer?
A
A small molecule
B
A mixture of elements
C
A large molecule made of repeating units
D
An ionic compound
2.
Ethanoic acid is used in everyday life as:
A
Soap
B
Vinegar
C
Detergent
D
Perfume
3.
The process of ester formation is called:
A
Hydrogenation
B
Esterification
C
Saponification
D
Neutralization
4.
Which polymer is obtained from ethene?
A
PVC
B
Polythene
C
Nylon
D
PET
5.
Which polymer is used in making bulletproof vests?
A
Nylon
B
Kevlar
C
Polythene
D
PVC
6.
Proteins are polymers of:
A
Sugars
B
Amino acids
C
Fatty acids
D
Nucleotides
7.
Which polymer is commonly used in water pipes?
A
Polythene
B
PVC
C
Nylon
D
Teflon
8.
The acidic nature of carboxylic acids is stronger than:
A
Mineral acids
B
Alcohols
C
Bases
D
Salts
9.
Which factor increases the strength of polymers?
A
Short chains
B
Long chains
C
Low temperature
D
Low pressure
10.
Carboxylic acids turn blue litmus:
A
Red
B
Green
C
Yellow
D
No change
11.
Which acid is widely used in food preservation?
A
Methanoic acid
B
Ethanoic acid
C
Sulphuric acid
D
Nitric acid
12.
Which of the following is a thermoplastic polymer?
A
Bakelite
B
Polythene
C
Melamine
D
Epoxy
13.
Which reagent is commonly used for oxidation of ethanol to ethanoic acid?
A
KMnO4
B
NaCl
C
HCl
D
NH3
14.
Which polymer is used for packaging food?
A
Polythene
B
Rubber
C
Nylon
D
Bakelite
15.
Which polymerization process does not produce by-products?
A
Condensation
B
Addition
C
Step growth
D
Dehydration
16.
Which of the following is a natural polymer?
A
PVC
B
Polythene
C
Nylon
D
Starch
17.
Which bacteria are responsible for conversion of ethanol into vinegar?
A
Lactobacillus
B
Acetobacter
C
Rhizobium
D
E. coli
18.
Which ester is commonly used as artificial flavor?
A
Ethyl ethanoate
B
Sodium ethanoate
C
Methanoic acid
D
Ethanol
19.
Which of the following is a synthetic polymer?
A
Cellulose
B
Protein
C
Rubber
D
Polythene
20.
Which polymerization process produces water as a by-product?
A
Addition polymerization
B
Condensation polymerization
C
Free radical polymerization
D
Chain polymerization