BeO reacts with HF in presence of ammonia to give [A] which on thermal decomposition produces [B] an

Question

BeO reacts with HF in presence of ammonia to give [A] which on thermal decomposition produces [B] and ammonium fluoride. Oxidation state of Be in [A] is ______ .

Professor PC Thomas Classes · Answer

Product A is $(NH_4)_2BeF_4$. Beryllium always shows a consistent +2 oxidation state in its compounds.