Which one of the following materials is not present in gun powder

• GC Metals Non-Metals

Which one of the following materials is not present in gun powder?

1. Sulphur
2. Charcoal
3. Potassium nitrate
4. Barium sulphate

Answer

Gunpowder, also known as black powder, is the earliest known chemical explosive. It is a mixture of sulfur, charcoal, and potassium nitrate (saltpeter). The sulfur and charcoal act as fuels, and the saltpeter is an oxidizer.

The correct option is D.