11.13. Rationalise the given statements and give chemical reactions :
(a) Lead (II) chloride reacts with to give .
is belong to the group 14th and it has two oxidation states +2 and +4. On moving down the group, the stability of the +2 oxidation state is more than the +4 oxidation state, it is due to the inert pair effect. This is less stable than . However, the formation of takes places when the chlorine gas is bubbled by a saturated solution of .