Question

Fussain

a.

is friable, charcoal like substance.

b.

has highest fixed carbon and lowest volatile matter content of all the four banded components of coal.

c.

is non-coking, but when blended with highly coking coal, controls its swelling and produces high strength coke on carbonisation.

d.

all (a), (b) and (c).

Answer: (d).all (a), (b) and (c).

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Q. Fussain

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