During the carbonisation of coal – McqOptions

MCQOPTIONS

1.	During the carbonisation of coal
A.	all tar is evolved at < 600¬∞C.
B.	evolution of H2 and formation of methane and aromatics occur at > 700¬∞C.
C.	hard semi-coke starts shrinking at 600¬∞C.
D.	all (a), (b) and (c).
Answer» E.

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