The valency of aluminium is 3. Write the valency of other radicals present in the following compounds.

(a) Aluminium chloride

(b) Aluminium oxide

(c) Aluminium nitride

(d) Aluminium sulphate

4 views

1 Answers

(a) Aluminium chloride — (AlCl3) here valency of Al is 3.

Other radical – Chloride (Cl-)

Valency of chloride = 1

(b) Aluminium oxide — (Al2O3)

Here valency of Al is 3

Other radical presents = oxide (O2-)

Valency of O2- = 2

(c) Aluminium nitride — (Al N)

Here valency of aluminium = 3

Another radical = Nitride (N3-)

Valency of nitride (N3-) = 3

(d) Aluminium sulphate — Al2(SO4)3

Here valency of aluminium is 3

Another radical = Sulphate (SO 42-)

Valency of (SO42-) = 2

4 views