utets13 q121

  • Option : B
  • Explanation : Plaster of Paris is made from gypsum which is a crystalline mineral of hydrated calcium sulphate. The chemical formula of plaster of Paris is
    CaSO4. 1/2H2O
Cancel reply

Your email address will not be published. Required fields are marked *


Cancel reply

Your email address will not be published. Required fields are marked *