Plaster of Paris is : — s Block Elements Chemistry Question

💡 Solution & Explanation

Step 1: Plaster of Paris is chemically known as calcium sulfate hemihydrate. Step 2: Its chemical formula is represented as CaSO4 . 0.5H2O, which can also be written in its anhydrous-equivalent ratio as 2CaSO4 . H2O. Step 3: Thus, 2CaSO4 . H2O represents Plaster of Paris, matching option (c).