Question

ammoniacal liquor is also obtained along with coke, coal tar and coal gas in the processing of carbon

Answer 1

Ammoniacal liquor is a solution of ammonia in water. It is very much obtained by the destructive distillation of coal. However, of the products obtained from the destructive distillation of coal, it is the only one that does not contain carbon. Moreover, ammoniacal liquor can be obtained from many other sources. The other three, on the other hand are majorly obtained from coal.