Question

Name the three compounds of calcium which are used in daily life and write one important use in each case.

Answer 1

The three compounds of calcium and their uses are as follows:

(i) Slaked lime [Calcium hydroxide, ${Ca\left(OH\right)}_2$] – used in manufacturing bleaching powder.

(ii) Bleaching powder [Calcium oxychloride,${CaOCl}_2$] – used as bleaching agent in laundries.

(iii) Plaster of Paris [Calcium sulphate hemihydrate,${Ca\left(SO\right)}_4.\frac{1}{2}$ $H_{2}O$ ] – used in hospitals to plaster the fractured bones.