InterviewSolution
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InterviewSolution
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How is plaster of paris prepared? |
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Answer» SOLUTION :Plaster of Paris is prepared by heating gypsum to a TEMPERATURE of `100^@C` . The following reaction takes place ` CaSO_4. 2H_2O overset(100^@C)(to) CaSO_(4) 1/2H_2O+ 1(1)/(2) H_2O` : On mixing with WATER, it react to a hard mass to form gypsum again i.e, the reverse reaction takes place. |
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