Which one of the following is the correct statement

Options

A. Beryllium exhibits coordination number of six
B. Chlorides of both beryllium and aluminium have bridged chloride structures in solid phase
C. `B_2 H_6 2NH_3 ` is known as ‘inorganic benzene’
D. Boric acid is a protonic acid

Answer

B

Explanation

Like solid `AlCl_3, BeCl_2` also forms a polymer structure with bridged chlorines.