identify the type of combustion with suitable reasons
a) burning of white phosphorous
b) bursting of crackers
Answers
Answer:
(a) Burning of white phosphorus in air at room temperature is a spontaneous combustion. The type of combustion in which a material suddenly bursts into flames, without the application of any apparent cause is called spontaneous combustion
b) On November 6, Haryana government had announced a complete ban on bursting firecrackers due to coronavirus and air pollution. However, two days later, Chief Minister Manohar Lal Khattar did a U-turn and relaxed the order to allow bursting of firecrackers for two hours on Deepavali night.
Answer:
a) Bursting of white phosphorus- Spontaneous combustion as when white phosphorus is ignited, no external heat is produced.
b) Bursting of crackers- Explosive combustion as when a cracker is ignited, the chemicals present in it undergoes a sudden combustion producing heat, light and a large volume of gases.