Question

1.
The highest grade of coal is known as-​

Answer 1

Answer:

ANTHRACITE

Explanation:

The four ranks are: Anthracite: The highest rank of coal. It is a hard, brittle, and black lustrous coal, often referred to as hard coal, containing a high percentage of fixed carbon and a low percentage of volatile matter.

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Answer 2

Answer:

The highest rank of coal is Anthracite.

Explanation:

is a hard, brittle, and black lustrous coal, often referred to as hard coal, containing a high percentage of fixed carbon and a low percentage of volatile matter.