Question

Write one word for the following
1.The lowest temperature at which a substance catches fire.
2.Oxides of sulphur and nitrogen are dissolved in rain water, such rain is called.
3.The amount of heat energy produced on complete combustion of 1 kg. of a fuel.
​

Answer 1

Answer:

1- Ignition temperature.

2-

3-Calorific value.

Explanation:

Follow me and mark me as brainliest...