Question

short answer type question. what happens when coal is heated in air? state the uses of coal.

Answer 1

carbon dioxide is released with heat energy
coal are used in industrial purpose

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Answer 2

When it is heated in air it releases carbon dioxide and do pollution.
Some uses are-
1. Coal is used in electricity generation.
2. Coal are used in steel production.
3. Many several products can be produced from the by products of coal