Multiple choice

Which of the following is one of the constituents of gunpowder?

  1. Potassium hydroxide

  2. Potassium iodide

  3. Potassium peroxymonosulfate

  4. Potassium nitrate

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Potassium nitrate occurs as a mineral niter and is a natural solid source of nitrogen. Major uses of potassium nitrate are in fertilizers, rocket propellants and fireworks. It is one of the constituents of gunpowder.