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Which one of the following is the chemical formula of gypsum?

Options

  1. ACaSO ₄ 2 H ₂ O
  2. BCa ₂ SiO ₄
  3. C2 CaSO ₄ H ₂ O
  4. DCaSO ₄

Correct answer

A. CaSO ₄ 2 H ₂ O

Step-by-step solution

Gypsum is a soft sulfate mineral composed of calcium sulfate dihydrate, with the chemical formula CaSO ₄ 2 H ₂ O . It is widely mined and is used as a fertilizer and as the main constituent in many forms of plaster, blackboard chalk and wallboard.

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