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Question

Chemistry Question on Writing Chemical Formulae

The correct formula for plaster of Paris is

A

CaSO4.4H2OCaSO_4.4H_2O

B

CaSO4.2H2OCaSO_4.2H_2O

C

CaSO4.12H2OCaSO_4.\frac 12H_2O

D

CaSO4.1H2OCaSO_4.1H_2O

Answer

CaSO4.12H2OCaSO_4.\frac 12H_2O

Explanation

Solution

The correct option is (C): CaSO4.12H2OCaSO_4.\frac 12H_2O.