Calcium sulphate is known as__________?
Correct answer: B. Gypsum salt
- A. Epsom salt
- B. Gypsum salt
- C. Blue vitriol
- D. Potash alum
Explanation
Calcium sulphate commonly occurs as gypsum, especially as hydrated calcium sulphate. Epsom salt is magnesium sulphate, while blue vitriol is copper sulphate.
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