Is Plaster of Paris waterproof?

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Solution

Explanation:
The formula of Plaster of Paris ${CaSO}_{4} \cdot \frac{1}{2} H_{2} O$ .
The Plaster of Paris is also known as POP.
plaster of Paris is used to protect walls from water and moisture.
Hence, Plaster of Paris is waterproof.

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(a) What is plaster of Paris? Write the chemical formula of plaster of Paris.

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Plaster of Paris is

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