(a) Summarize the trends in relative stabilities of the oxidation states of the elements of Group 14, and indicate the elements that display the inert-pair effect. 

(b) With this information in mind, write balanced chemical reactions or NR (for no reaction) for the following combinations, and explain how the answer fits the trends:

Transcribed Image Text:

(i) Sn²+ (aq) + PbO₂ (s) (excess)- (ii) Sn²+ (aq) + O₂(air) → air excluded