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Fuel

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Question

The substance which is expected to have the highest ignition temperature out of the following is

A

coal

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B

kerosene

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C

petrol

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D

alcohol

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Solution

The correct option is A coal
The ignition temperature of a substance is the least temperature at which the substance starts burning or catches fire.

It’s a known that coal starts burning at high temperatures.

Substances

Ignition temperatures (in Celsius)

Coal

580

Kerosene

295

Petrol

400

Alcohol

365

Hence, the highest ignition temperature is of coal.

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