Plaster of paris hardness by (a) Giving off CO2 (b) Changing into CaCO3 (c) Uniting with water (d) Giving out water Plaster of paris hardness by (a) Giving off CO2 (b) Changing into CaCO3 (c) Uniting with water (d) Giving out water November 15, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP [...]