General Science – Synthetic Materials

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General Science - Synthetic Materials

Question 1 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Optic fibres are mainly used for which of the following?
A
Musical instruments
B
Food industry
C
Weaving
D
Communication
There are 5 questions to complete.