Plaster of Paris is __________________?
Correct answer: C. Both A. and B.
- A. CaSO4.½H2O
- B. Used for setting of broken bones
- C. Both A. and B.
- D. Same as gypsum
Explanation
Plaster of Paris is calcium sulfate hemihydrate, CaSO4·½H2O, which reacts with water to form gypsum and harden. This setting property makes it useful for immobilising broken bones, so both statements A and B are correct.
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