1.

Identify the correct statement [CBSE PMT 1995]

A. Gypsum contains a lower percentage of plaster of calcium than plaster of paris
B. Gypsum is obtained by heating plaster of paris
C. Plaster of paris can be obtained by hydration of gypsum
D. Plaster of paris is obtained by partial oxidation of gypsum
Answer» B. Gypsum is obtained by heating plaster of paris


Discussion

No Comment Found