Subject :NSO Class : Class 8
Using the given hints, identify the option with correct
coal product and its use.
(1) Almost pure form of carbon.
(2) Mixture of about 200 substances.
A (1) - Coke, manufacture of steel
B (1) - Coal tar, manufacture of paints
C (2) - Coke, manufacture of plastics
D (2) - Coal tar, extraction of metals
In this, the answer is given (a) but it must not be (A) as coal tar is mixture of about 200 substances; not the coke. Am I right???
Ans 1:
Class : Class 8
Coal Tar is a mixture of 200 substances and is also used in manufacturing of various materials like paints, perfumes and photographic materials. The correct answer should be (B).