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Q.

Is it true that when coal burns in air, carbon dioxide gas is produced?


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a

True

b

False 

answer is A.

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Detailed Solution

The above statement is true.
There are no other valuable products produced when coal is burned in the presence of air other than carbon dioxide gas. It is a gaseous fuel that is created when coal is heated vigorously without the presence of air during the coke-making process.
 
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