1.

(i) Write the chemical formula of each of the following: (a) Plaster of paris (b) Gypsum (ii) How can plaster of paris be converted into gypsum. (iii) List any one use of plaster of paris.

Answer»

SOLUTION :(i) (a) `CaSO_4. 1/2 H_2O`
(b) `CaSO_4. 2H_2O`
(ii) BY MIXING with water
`CaSO_4. 1/2H_2O+1 1/2H_2OtoCaSO_4. 2H_2O`
(iii) For making TOYS for supporting fractured BONES.


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