Multiple choice

Which of the following is/are the conditions necessary for combustion?

a. Presence of a combustible substance. b. Presence of a supporter of combustion. c. Heating of the combustible substance to its ignition temperature.

  1. Only a

  2. Only c and b

  3. Only a and c

  4. Only c

  5. All of these

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Heating of the combustible substance to its ignition temperature is a condition necessary for combustion.