Saltpetre is another name for ______.
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. potassium nitrate.
- Potassium nitrate (KNO3) is sometimes known as saltpetre or nitrate.
- Saltpetre is a commonly used food preservative, fertiliser, and oxidiser for fireworks and rockets.
- Potassium nitrate, often known as saltpetre, is a naturally occurring mineral required for the manufacturing of gunpowder.