Question

Give the chemical reaction as an evidence for each of the following observations. 

(i) Tin (II) is a reducing agent where as lead (II) is not. 

(ii) Gallium (I) undergoes disproportionation reaction. 

Answer 1

(i) Due to inert pair effect pb²⁺ is more stable than Pb⁴⁺. Whereas Sn⁴⁺ is more stable than Sn²⁺.

(ii) 3Ga⁺ → 2Ga + Ga³⁺ 

This is because Ga³⁺ is more stable than Ga⁺.