Question

If ignition temperature of a substance is lower than room temperature then it will undergo spontaneous combustion.

• A. False
• B. True

Answer 1

The correct option is B True

A certain minimum temperature is required to initiate combustion reaction. This temperature is called ignition temperature.
A type of combustion where an external agent is not required and the material catches fire automatically is called spontaneous combustion. When the ignition temperature is lesser than the room temperature, combustion takes places on its own without the application of any external agent.