The halides of alkaline earth metals form hydrates such as $MgCl_2 \cdot 6H_2O$,$CaCl_2 \cdot 6H_2O$,$BaCl_2 \cdot 2H_2O$,and $SrCl_2 \cdot 2H_2O$. This indicates that the halides of group $2$ elements are:
- AHygroscopic in nature
- BAct as dehydrating agents
- CCan absorb moisture from the air
- DAll of the above are correct
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Which of the following ions has a higher hydration enthalpy than the $Mg^{2+}$ ion?
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