Fertilizers — Natural and Artificial NDA Questions

NDA Chemistry

Fertilizers — Natural and Artificial MCQ Questions


7.
What are the two different types of molecules found in soap?
A.
Acidic and basic
B.
Hydrophilic and hydrophobic
C.
Ionic and covalent
D.
Organic and inorganic
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ANSWER :
B. Hydrophilic and hydrophobic
8.
Give an example of an inorganic fertilizer?
A.
Cow dung
B.
Vermicompost
C.
Urea
D.
Compost.
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ANSWER :
C. Urea
9.
Which of the following is an example of an organic fertilizer?
A.
Urea
B.
Ammonium nitrate
C.
Vermicompost
D.
Superphosphate
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ANSWER :
C. Vermicompost
10.
Explain the uses of plaster of Paris?
A.
To make pottery
B.
To treat skin conditions
C.
To create casts for broken bones
D.
To insulate buildings
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ANSWER :
C. To create casts for broken bones
11.
What are the primary ingredients of cement?
A.
Sand, gravel, and water
B.
Limestone, clay, and gypsum
C.
Iron ore, coke, and limestone
D.
Silica, alumina, and iron oxide
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ANSWER :
B. Limestone, clay, and gypsum
12.
Why is gypsum used in cement production?
A.
To enhance color and texture
B.
To increase strength and durability
C.
To improve workability and reduce setting time
D.
To provide a smooth finish
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ANSWER :
C. To improve workability and reduce setting time