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Question : What is the chemical name of saltpetre?

Option 1: Potassium nitrate

Option 2: Potassium manganite

Option 3: Lead nitrate

Option 4: Lead sulphate


Team Careers360 18th Jan, 2024
Answer (1)
Team Careers360 20th Jan, 2024

Correct Answer: Potassium nitrate


Solution : The correct option is Potassium nitrate .

Its chemical formula is KNO 3. Saltpetre is a naturally occurring mineral historically used for various purposes, including as a component of gunpowder, fertiliser, and food preservation.

Physical Properties:

  • Potassium nitrate is a colourless and odourless crystalline salt.
  • It is soluble in water.
  • It has a high melting point of about 334 degrees Celsius (633.2 degrees Fahrenheit).
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