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Yoverset(Delta205^(@)C)larrCaSo(4).2H(2)...

`Yoverset(Delta205^(@)C)larrCaSo_(4).2H_(2)Ooverset(Delta120^(@)C)rarrX` X and Y are respectively

A

plaster of paris, dead burnta plaster

B

dead burnt plaster of paris

C

CaO and plaster of pairs

D

plaster of pairs mixture of gases

Text Solution

Verified by Experts

The correct Answer is:
A
`underset("Deadplaster")(CaSO_(4))underset(250^(@)C)overset(Delta)larrCaSO_"(4).2H_(2)Ounderset(120^(@)C)overset(Delta)rarrCaSO_(4).(1)/(2)H_(2)O`
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