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Question

Chemistry Question on GROUP 1 ELEMENTS

The chemical formula of plaster of Paris is

A

CaSO4.12H2OCaS{{O}_{4}}.\frac{1}{2}{{H}_{2}}O

B

CaSO4.H2OCaS{{O}_{4}}.{{H}_{2}}O

C

CaSO4.2H2OCaS{{O}_{4}}.2{{H}_{2}}O

D

CaSO4.3H2OCaS{{O}_{4}}.3{{H}_{2}}O

Answer

CaSO4.12H2OCaS{{O}_{4}}.\frac{1}{2}{{H}_{2}}O

Explanation

Solution

Plaster of Paris CaSO412H2OCaSO _{4} \cdot \frac{1}{2} H _{2} O
Gypsum CaSO42H2OCaSO _{4} \cdot 2 H _{2} O