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  •  Identify the correct statement.Option: 1 Plaster of paris is obtained by heating gypsumOption: 2<

 Identify the correct statement.

Option: 1

Plaster of paris is obtained by heating gypsum


Option: 2

Gypsum is obtained by heating plaster of paris


Option: 3

 Plaster of paris can be obtained by hydration of gypsum


Option: 4

Plaster of paris is obtained by partial oxidation of gypsum


Answers (1)

best_answer

Plaster of paris is prepared by heating Gypsum. When the gypsum is heated, it loses water molecule and forms calcium sulphate hemihydrate. The reaction will be \underset{\textup{(Gypsum)}}{\mathrm{CaSO}_4 \cdot 2 \mathrm{H}_2 \mathrm{O}}+\text { Heat } \rightarrow \quad \underset{\textup{(Plaster of paris)}}{\mathrm{CaSO}_4 \cdot 1/2 \mathrm{H}_2 \mathrm{O}}+1 \frac{1}{2} \mathrm{H}_2 \mathrm{O}

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Kuldeep Maurya

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