Materials Used in the Preparation of Substances like Soap, Glass, Ink, Paper, Cement, Paints, Safety Matches and Gun-Powder NDA Questions

NDA Chemistry

Materials Used in the Preparation of Substances like Soap, Glass, Ink, Paper, Cement, Paints, Safety Matches and Gun-Powder MCQ Questions


7.
What is the base component in the preparation of ink?
A.
Dye
B.
Carbon black
C.
Water
D.
Iron oxide
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ANSWER :
B. Carbon black
8.
Which chemical is essential for the preparation of soap?
A.
Nitric acid
B.
Magnesium sulfate
C.
Sodium hydroxide
D.
Sulfuric acid
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ANSWER :
C. Sodium hydroxide
9.
What material is used in the production of paper?
A.
Wood pulp
B.
Iron ore
C.
Limestone
D.
Sulfur
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ANSWER :
A. Wood pulp
10.
The primary component in making glass is__________
A.
Silica
B.
Magnesium
C.
Sodium hydroxide
D.
Chlorine
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ANSWER :
A. Silica
11.
Which chemical is used as a flux in the preparation of glass?
A.
Lime
B.
Sodium carbonate
C.
Magnesium sulfate
D.
Iron oxide
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ANSWER :
B. Sodium carbonate
12.
What is used to prepare gunpowder?
A.
Charcoal
B.
Calcium oxide
C.
Copper sulfate
D.
Sodium chloride
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ANSWER :
A. Charcoal