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........ is used as plaster for supporti...

........ is used as plaster for supporting fractured bones in the right position.

A

`CaSO_(1).10H_(2)O`

B

`CaSO_(4). 2H_(2)O`

C

`CaSO_(4) . (1)/(2)H_(2)O`

D

`CaSO_(4)`

Text Solution

Verified by Experts

The correct Answer is:
C
`CaSO_(4).(1)/(2)H_(2)O` is called plaster of Paris. It is prepared by heating gypsum at `120-180^(@)C`
`underset("Gypsum")(CaSO_(4).2H_(2)O) to underset("Plasater of Paries")(CaSO_(4).(1)/(2)H_(2)O) + 1(1)/(2)H_(2)O`
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