Everyday Science MCQs Police Department PPSC Past Papers Punjab Police Department Sub Inspector (SI) What is mixture of Potassium Nitrate, Charcoal and Sulpher called? January 31, 2022 Admin No Comments A: Gunpowder B: Paint C: Brass D: Aluminium Correct Answer: a Short Details: Gunpowder was invented by Choe Museon in 1377. View More Details >>
