Multiple choice

Epsom salt is chemically known as

  1. potassium chloride

  2. potassium nitrate

  3. ammonium carbonate

  4. magnesium sulphate

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

Epsom salt is magnesium sulfate (MgSO4·7H2O). It is named after Epsom, England where it was originally obtained from mineral springs. The other options are different salts: potassium chloride, potassium nitrate, and ammonium carbonate.