Question

Explain coking and caking properties of coal.​

Answer 1

Answer:

Here is the answer...

Explanation:

A Caking coal, when heated in a similar way, leaves a solid coherent residue. ... A coking coal is that coal which on heating in absence of air leaves a solid residue. A non-coking coal also leaves a solid coherent residue which may not possess the physical & chemical properties of the coke.

Answer 2

Explanation:

Other properties, such as hardness, grindability, ash-fusion temperature, and free-swelling index (a visual measurement of the amount of swelling that occurs when a coal sample is heated in a covered crucible), may affect coal mining and preparation, as well as the way in which a coal is used.