The number of water molecules in gypsum and plaster of paris respectiv

1.	The number of water molecules in gypsum and plaster of paris respectively are [Pb. PMT 1999]
A.	1/2 and 2
B.	2 and ½
C.	2 and 1
D.	5 and 2
Answer» C. 2 and 1

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The number of water molecules in gypsum and plaster of paris respectively are [Pb. PMT 1999]

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