High ash coals ________?

5080Chemical EngineeringMedium

ARequire longer time of carbonisation as ash offers resistance to heat transfer

BNone of these

CProduce larger quantity of coke oven gas

DAre soft & friable (poor strength and size stability)

Correct answer

A. Require longer time of carbonisation as ash offers resistance to heat transfer

Explanation

The correct answer is Require longer time of carbonisation as ash offers resistance to heat transfer.

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