Choose the Best Answer · Q23
Q.Formula of Gypsum is
a) CaSO₄ . 2H₂O
b) CaSO₄ . ½ H₂O
c) 3 CaSO₄ . H₂O
d) 2CaSO₄ . 2H₂O
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Start your 14-day free trial to unlock the full solution →Step 1. Section 5.6.3 explicitly names and defines gypsum as CaSO₄·2H₂O.
Step 2. This is distinct from plaster of Paris, the HEMIhydrate CaSO₄·½H₂O (option b) -- gypsum has to lose 1.5 of its 2 water molecules on heating to become plaster of Paris. …
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