Which one of the following is the correct statement?
a− diborane diammoniate b− Boric acids does not liberate protons on its own but acts as a monobasic acid upon hydrolysis c− Maximum valency of Be is 4
Choose the correct statements from the following . ? (a) Beryllium is not readily attacked by acids because of the presence of an oxide film on the surface of the metal (b) beryllium stable is readily soluble in water as the greater hydration enthalpy of Be2+ very the lattice enthalpy factor (c) Beryllium exhibits coordination number more than four (d) Beryllium oxide is purely acidic in nature