Which of the following is not an example of spontaneous combustion ?

(a)
Burning of liquified petroleum gas

(b)
Fire caused in coal mines

(c)
Dry white phosphorous liberates white fumes on exposure to air

(d)
All of these

Question

Which of the following is not an example of spontaneous combustion ?

(a)		
Burning of liquified petroleum gas

(b)		
Fire caused in coal mines

(c)		
Dry white phosphorous liberates white fumes on exposure to air

(d)		
All of these

anonymous · Answer

I would say that A is the right answer, but I wouldn't consider a fire caused in a coal mine to be spontaneous. There is usually an ignition source present that ignites the fine dust particles.

anonymous · Answer

So what should I select?

anonymous · Answer

C

anonymous · Answer

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