Multiple choice

Which of the following is an example of spontaneous combustion?

  1. The burning of wax in a candle

  2. The burning of coal dust in coal mines

  3. The burning of cooking gas in a gas stove

  4. The exploding of crackers during festivals

  5. The burning of kerosene oil in a kerosene stove
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

This is the correct option as the burning of coal dust in coal mines is an example of spontaneous combustion. Coal dust burns at room temperature inside the cold mines, spontaneously.

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