Which among the following is NOT a constituent of gun-powder?
Show answer & explanation
Correct answer: B
Explanation
The correct answer is Option 2 i.e. Calcium Carbonate.
Gunpowder, or black powder, traditionally consists of three main ingredients: potassium nitrate (saltpeter), charcoal (a source of carbon), and sulfur. Potassium nitrate acts as the oxidizer, providing oxygen for the combustion. Charcoal is the fuel, and sulfur helps lower the ignition temperature and contributes to the burning process.
Calcium carbonate is not a primary constituent of traditional gunpowder. While it can be used in some explosive formulations as a stabilizer or to reduce explosive properties, it's not a core component that defines gunpowder.