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Gypsum on heating gives :...

Gypsum on heating gives :

A

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

B

`CaSO_(4)`

C

`CaO+SO_(3)`

D

`CaS+O_(2)`

Text Solution

Verified by Experts

The correct Answer is:
A, B
`CaSO_(4).2H_(2)Ooverset(120-130^(@)C)rarrunderset("Plaster of paris")(CaSO_(4).(1)/(2)H_(2)O)`
`CaSO_(4).2H_(2)Ooverset(gt200^(@)C)rarrunderset("Dead burnt gypsum")(CaSO_(4))+2H_(2)O`
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