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Role of nitre in the manufacture of gun ...

Role of nitre in the manufacture of gun powder is ______ .

A

to supply oxygen

B

to supply nitrogen

C

to decrease the rate of combustion

D

to absorb temperature produced by combustion

Text Solution

Verified by Experts

The correct Answer is:
A
Nitre is `KNO_(3)`, which on heating gives `KNO_(2) "and" O_(2)`. The liberated oxygen is the source for the combustion of carbon and sulphur.
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