21.
Coal tar contains about
A
300 substance
B
400 substance
C
200 substance
D
100 substance
Answer and explanation
Correct Answer: C — 200 substance
The correct answer is 200 substance.
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24 practice sets · Page 2 of 2
Coal tar contains about
300 substance
400 substance
200 substance
100 substance
The correct answer is 200 substance.
Coal tar is used in manufacture of
Drugs
All of these
Explosives
Synthetic dyes
The correct answer is All of these.
Coal tar has an unpleasant smell
None of these
Pleasant
Both (a) & (b)
Unpleasant
The correct answer is Unpleasant.
Coal is produced in industry to get
Coal tar
Coal gas
All of these
Coke
The correct answer is All of these.