Question

Q.12. A white powder is used in the
setting of the fractured bones. It gets
hardened on mixing with water. (a)
Name the substance used for the said
purpose and write its chemical
formula. (b) How is it prepared? Write
the reaction. (c) Write two uses of the
said substance other than mentioned
in the question. (d) What is the
disadvantage of using this substance?
(e) What happens if the said
substance is strongly heated to 1400
degree Celsius.​

Answer 1

Explanation:

Plaster of Paris the substance used to treat the fractured bones. The chemical name of the powder is known as calcium Sulphate Hemihydrates. Water of crystallization is the added to the plaster of Paris to make it more durable.