Choose the correct statement(s) :
A. Large reducing nature of Be is due to large hydration energy and large value of enthalpy of atomization
B. Alkaline earth metals dissolve in liquid ammonia to give deep blue-black solutions forming ammoniated ions
C. From the solutions of (b), ammoniates `[M(NH_(3))_(6)]^(2+)` can be recovered
D. all of the above
