question_answer

A compound is prepared from gypsum upon heating to a temperature of 373 K and it changes back to gypsum on adding water. Which is the incorrect statement about the compound?

A) The compound is used for setting fractured bones.

B) The compound is called plaster of Paris which is calcium sulphate dehydrate with a formula \[CaS{{O}_{4}}.2HO.\]

C) If heated at higher temperature, the compound becomes dehydrated and is called dead burnt plaster.

D) Both (a) and (b).