Question

D. Write True or False against each statement :
1. Combustion is a chemical process in which a substance reacts to give off heat
2. The calorific value of hydrogen gas is 65000 kj/kg.
3. Oxygen is not essential for combustion
4. LPG is a gaseous fuel.
5. Usually substances catch fire at one fixed temperature.
Subjective
E. Short Answer Type Questions:
ature?​

Answer 1

Answer:

1.False

2.

3.true

4.true

5.false