Question

plasters of Paris should be in moisture- proof container. explain why ?​

Answer 1

Answer:

Plaster of Paris is calcium sulphate hemihydrate. When Plaster of Paris kept in the presence of moisture, it absorbs the water molecule and forms a hard substance called gypsum. This will make the Plaster of Paris useless. That is why it is always stored in a moisture-proof container

Answer 2

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