The group 14 elements 
and 
have the first ionisation enthalpy values of 708 and 
respectively. The above values are lowest among their group members. The nature of their ions 
and 
respectively is
Text Solution
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Given the ionization energy values for elements 
and 
in group 14, where 
has an ionization energy of 
and 
has 
, these values are the lowest among their group. This helps identify the elements as tin 
and lead 
, respectively. In this context:
The 
ion corresponds to 
, which acts as a reducing agent.
The 
ion corresponds to 
, which acts as an oxidizing agent.
Therefore, Sn in the +2 oxidation state tends to donate electrons (reduce), while Pb in the +4 oxidation state tends to accept electrons (oxidize), underscoring their respective roles as reducing and oxidizing agents.
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