A) 1/2 and 2
B) 2 and ½
C) 2 and 1
D) 5 and 2
Correct Answer: B
Solution :
\[CaS{{O}_{4}}\,.\,2{{H}_{2}}O\]- Gypsum \[CaS{{O}_{4}}\,.\,\frac{1}{2}{{H}_{2}}O\]- Plaster of paris
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