Question

A good fuel is the one which burn
completely on supply of​

Answer 1

Answer:

lol

Explanation:

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Answer 2

Answer:

The amount of heat liberated, when one kg of a fuel is completely burnt in sufficient supply of oxygen, is called the calorific value of the fuel. Hydrogen is not used as fuel despite the highest calorific value because: It is lighter than air; thus, it is not easily available.