Give some of the diagonal relationships between beryllium and aluminium:

Both metals have the tendency to form covalent compounds

BeCl2 and AlCl3 act as lewis acids and use in friedal crafts catalyst

Both metals dissolves in alkalies to form soluble complexes beryllates and aluminates

The oxides of both are hard, high melting insoluble solids

The oxides and hydroxides of both are amphoteric inn nature

Carbides of both the metals react with water Liberating methane gas

BOOK

Free Class