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in Chemistry by (71.8k points)
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Plaster of paris is prepared by heating one of the following to a temperature of `100^(@)C` this is:
A. `CaSO_(3).2H_(2)O`
B. `CaCl_(2).2H_(2)O`
C. `CaCO_(3).2H_(2)O`
D. `CaSO_(4).2H_(2)O`

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