Q. Which of the following is used in gunpowder?
A) Potassium nitrate
B) Potassium bromide
C) Potassium sulphate
D) Monopotassium tartarate
✔ Correct Answer: Potassium nitrate
Exam Insight
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A) Potassium nitrate
B) Potassium bromide
C) Potassium sulphate
D) Monopotassium tartarate
✔ Correct Answer: Potassium nitrate
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