Question

When a combustible substance catches fire on its own, even at room temperature, is referred to as -
Slow Combustion
Rapid Combustion
Explosive Combustion
Spontaneous Combustion

Answer 1

Answer:

Rapid combustion: The combustion in which the gas burns rapidly and produces heat and light is called rapid combustion. 2. Spontaneous combustion: The combustion in which no external heat is given is known as spontaneous combustion. For example: Burning of white phosphorus in air.