Question

Which one of the following is the correct statement?(a) Boric acid is a protonic acid (b) Beryllium exhibits coordination number of six(c) Chlorides of both beryllium and aluminium have bridged chloride structures in solid phase(d) B₂H₆.2NH₃ is known as ‘inorganic benzene’

Answer 1

As we learnt in

Property of aluminium chloride -

Dimeric structure disappears when dissolved in water. It is hygroscopic in nature.

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AlCl_{3} displays octahedral coordination geometry.

Option 1)

B_2H_6\cdot 2NH_3 is known as ‘inorganic benzene’

This option is incorrect.

Option 2)

Boric acid is a protonic acid.

This option is incorrect.

Option 3)

Beryllium exhibits coordination number of six

This option is incorrect.

Option 4)

Chlorides of both beryllium and aluminium have bridged chloride structures in solid phase

This option is correct.