In high temperature carbonisation (as compared to low temperature carbonisation) of coal

Question: In high temperature carbonisation (as compared to low temperature carbonisation) of coal
[A].

coke oven gas yield is more.

[B].

tar yield is less but free carbon in tar is more.

[C].

calorific value of coke oven gas is less.

[D].

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

Answer: Option D

Explanation:

No answer description available for this question.