Combustion can take place at all temperatures less than an ignition temperature.

True

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False

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Solution

The correct option is B False
The minimum temperature at which a substance starts to burn is called its ignition temperature. Different fuels have different ignition temperatures. For combustion, ignition temperature should at least be achieved. Substance starts burning only at a temperature equal to ignition temperature or more than it.

Hence, given statement is $F a l s e$ .

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Similar questions

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	Respiration	Combustion
a.	Respiration is a slow process.	Combustion is relatively a fast process.
b.	Respiration takes place at the body temperature.	Combustion takes place at the ignition temperature of the fuel.
c.	Respiration produces CO₂ + H₂O and energy.	Combustion of hydrocarbons always produces only CO₂.
d.	Respiration takes place inside a cell.	Combustion takes place outside a cell.
e.	Respiration takes place at all times.	Combustion only takes place when a fuel or a combustible substance burns.

If ignition temperature of a substance is lower than room temperature then it will undergo spontaneous combustion.

25^{0} C

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