Question

In experiment 1, Soham provided heat to a substance X and found that a sudden reaction took place releasing heat, light and sound. In experiment II, he provided heat to a substance Y He found that when Y burnt, only heat and light were produced. In his third experiment, the substance Z caught fire even before Soham tried to heat it.
Experiment I represents an example of ____, and experiment II represents an example of _____ combustion. The ignition temperature of Z is very ______. To prevent its ____ combustion, it is stored under kerosene

PLEASE ANSWER TIS QUESTION​

Answer 1

Answer:

My anwsers are 1 coal 2 spontaneous combustion

3 low 4 Rapid combustion