What is plaster of paris? How is it parpared? Give its any two important uses.

Explanation

Plaster of paris is ` CaSO_(4) (1)/(2) H_(2) O`. It is prepared by heating gypsum at 373 K.
`CaSO_(4). 2H_(2) O underset(373 K)overset("heat")(to) CaSO_(4) (1)/(2) H_(2)O + (3)/(2) H_(2)O`
uses:
(i) It is used for manufacture of status. (ii) It is used for filling gaps before white washing.