A) \[MgS{{O}_{4}}\,.\,\,x\,{{H}_{2}}O\]
B) \[CaS{{O}_{4}}\,.\,\,x\,{{H}_{2}}O\]
C) \[BaS{{O}_{4}}\,.\,\,x\,{{H}_{2}}O\]
D) All have the same value of \[x\]
Correct Answer: A
Solution :
As the size of metal atom increases, degree of hydration decreases. Thus, \[M{{g}^{2+}}\] ion gets more hydrated. Hence, \[x\] is maximum for\[MgS{{O}_{4}}\,.\,\,x{{H}_{2}}O\].
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