Multiple choice

Which of the following is chemical formula of Gypsum?

  1. CaSO4.2H2O

  2. CaOCl2

  3. CaSO4.1/2H2O

  4. None of these.
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A Correct answer
Explanation

Gypsum is chemically calcium sulfate dihydrate, represented by the formula CaSO4.2H2O. Option C represents Plaster of Paris, which is the hemihydrate.

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