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Question: Answered & Verified by Expert
Setting of plaster of Paris is
Chemistrys Block ElementsNEET
Options:
  • A Dehydration
  • B Oxidation with atmospheric oxygen
  • C Combination with atmospheric CO2
  • D Hydration to yield another hydrate
Solution:
2388 Upvotes Verified Answer
The correct answer is: Hydration to yield another hydrate
Setting of plaster of Paris is exothermic process.
CaSO 4 ⋅ 1 2 H 2 O → H 2 O CaSO 4 ⋅ 2H 2 O Orthorhombic → Heating CaSO 4 ⋅ 2H 2 O Gypsum

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