When coal burns in the air then

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Solution

Combustion:
"When a substance is burnt in the air, this process is called combustion."
It results in the evolution of Carbon dioxide gas.
Burning of coal:
When coal is burnt in the air, carbon dioxide is majorly produced along with other substances.
These substances include alumina, silica, residual carbon, iron oxide, and other toxic elements.

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Q. Write balanced chemical equations for the following:
(a) burning of coal (carbon) in a sufficient supply of air
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(c) Name the type of reaction in each of the above cases.
(d) How is carbon monoxide harmful?

(a) What happens when carbon burns in air? Write the chemical equation of the reaction which takes place.
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(c) Explain how coal was formed in the earth.
(d) Describe how petroleum was formed in the earth.
(e) Name a fossil fuel other than coal and petroleum.

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Q. When coal burns in air

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