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Question

Chemistry Question on GROUP 1 ELEMENTS

The correct formula of plaster of Paris is

A

\ceCaSO4?2H2O\ce{CaSO_4? 2H_2O}

B

\ceCaSO4?H2O\ce{CaSO_4? H_2O}

C

\ceCaSiO4?2H2O\ce{CaSiO_4? 2H_2O}

D

\ceCaSO4.12H2O\ce{CaSO_4 . \frac{1}{2} H_2 O}

Answer

\ceCaSO4.12H2O\ce{CaSO_4 . \frac{1}{2} H_2 O}

Explanation

Solution

Plaster of Paris is calcium sulphate hemihydrate, CaSO4.12H2O {CaSO_4 . \frac{1}{2} H_2 O}