Blue vitriol is [AFMC 1992]

1.	Blue vitriol is [AFMC 1992]
A.	\[CuS{{O}_{4}}\]
B.	\[CuS{{O}_{4}}.5{{H}_{2}}O\]
C.	\[C{{u}_{2}}S{{O}_{4}}\]
D.	\[CuS{{O}_{4}}.{{H}_{2}}O\]
Answer» C. \[C{{u}_{2}}S{{O}_{4}}\]

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Blue vitriol is [AFMC 1992]

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