Give reason: (i) C and Si are always tetravalent but Ge, Sn, Pb show – InterviewSolution

1.

Give reason: (i) C and Si are always tetravalent but Ge, Sn, Pb show divalency. (ii) Tin (II) is a reducing agent whereas lead (II) is not.

Answer»

(i) On the basis of electronic configuration 2s² 2p²C and Si occur in tetravalent form but Ge, Sn, Pb show divalency due to inert pair effect.

(ii) Due to inert pair effect, Pb²⁺ is more stable than pb⁴⁺whereas Sn⁴⁺is more stable than Sn²⁺ .So tin acts as a reducing agent.

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