1. Tardigrade
  2. Question
  3. Chemistry
  4. The use of plaster of Paris is in

Question Error Report

Thank you for reporting, we will resolve it shortly

Back to Question

Q. The use of plaster of Paris is in

Uttarkhand PMTUttarkhand PMT 2007

Solution:

Gypsum on heating loses a part of its water of crystallisation to form plaster of Paris.
$ \underset{gypsum}{2CaSO_4.2H_2O}\xrightarrow{120^{\circ}C} \underset{\text{Plaster of Paris}}{(CaSO_4)_2H_2O} + 3H_2O$
Plaster of Paris an mixing with water form gypsum and sets to hard mass with little expansion. Therefore, it is used in surgery and dentistry.