Question

Ignition temperature is the lowest temperature at which a substance catches fire. Identify the correct option regarding the ignition temperature of a good fuel.

• A. Ignition temperature should be below the room temperature.
• B. Ignition temperature should be above the room temperature.
• C. Ignition temperature should be equal to the room temperature.
• D. Ignition temperature should be less than 25°C.

Answer 1

The correct option is B

Ignition temperature should be above the room temperature.

A good fuel should not spontaneously catch fire. Hence, its ignition temperature should be more than room temperature or else it will catche fire easily and can be very disastrous. A good fuel is also one which is readily available. It is cheap. It burns easily at a moderate rate. It produces a large amount of heat. It does not leave behind any undesirable substances.