General Science – Synthetic Materials

General Science - Synthetic Materials

Question 1
How does common salt help in separating soap from the solution after saponification?
A
By decreasing density of Soap
B
By decreasing solubility of Soap
C
By increasing density of Soap
D
By increasing solubility of Soap






Question 2
Which is/are the important raw material(s) required in cement industry?
A
Gypsum and Clay
B
Clay
C
Limestone and Clay
D
Limestone
Question 3
Paper is manufactured by
A
Wood and resin
B
Wood, sodium and bleaching powder
C
Wood, calcium, hydrogen sulphite and resin
D
Wood and bleaching powder






Question 4
The vast resources of unutilised natural gas can be used in the production of
A
graphite
B
Synthetic petroleum
C
fertilisers
D
carbide
Question 5
Optic fibres are mainly used for which of the following?
A
Musical instruments
B
Food industry
C
Weaving
D
Communication






Question 6
Detergents used for cleaning clothes and utensils contain?
A
bicarbonates
B
bismuthates
C
sulphonates
D
nitrates
Question 7
In vulcanisation, natural rubber is heated with
A
Carbon
B
Silicon
C
Sulphur
D
Phosphorous






Question 8
The major ingredient of leather is
A
collagen
B
carbohydrate
C
polymer
D
nucleic acid
Question 9
Which of the following is a protein?
A
Natural rubber
B
Starch
C
Cellulose
D
None of these
There are 9 questions to complete.

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