| Components of gun powder are: |
| (1) Charcoal |
| (2) Potassium nitrate |
| (3) Magnesium |
| (4) Sulphur |
A) 1, 4
B) 2, 3, & 4
C) 2 & 3
D) 1, 2, 4
Correct Answer: D
Solution :
Gun powder is a granular mixture of a nitrate, typically potassium nitrate \[\left( KN{{O}_{3}} \right),\] which supplies oxygen for the reaction, charcoal, which provides carbon and other fuel for the reaction, simplified as carbon [c], and sulfur (S), which, while also serving as a fuel, lowers the temperature required to ignite the mixture, thereby increasing the rate of combustion.
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