Multiple choice

Which of the following statements is/are false? a. A combustible substance cannot catch fire as long as its temperature is higher than its ignition temperature. b. A supporter of combustion is necessary for the combustion to take place. c. The lowest temperature at which a substance catches fire and starts burning is called its ignition temperature.

  1. Only c

  2. Only a and b

  3. Only b

  4. Only b and c

  5. Only a
Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

It is the correct option. Statement 'a' is false. A combustible substance cannot catch fire as long as its temperature is lower than its ignition temperature.

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