What is the chemical formula of the substance which doctors use as plaster for supporting fractured bones in the right position?
Answer & explanation
Correct answer: option 4
The correct answer is option 4. CaSO4.\(\frac{1}{2}\)H2O
Plaster of Paris (POP): Calcium sulphate hemihydrate (CaSO4.\(\frac{1}{2}\)H2O)
POP is the substance that doctors use as plaster for supporting fractured bones in the right position.
Plaster of Paris is a white powder and on mixing with water, it changes to gypsum once again giving a hard solid mass.