The difference of number of water molecules in gypsum and plaster of P

1.	The difference of number of water molecules in gypsum and plaster of Paris is
A.	\[\frac{5}{1}\]
B.	2
C.	\[1/2\]
D.	\[1\frac{1}{2}\]
Answer» E.

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The difference of number of water molecules in gypsum and plaster of Paris is

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