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NTA Abhyas JEE Main2020ChemistryClassification of Elements and Periodicity in PropertiesPractice

Germanium (II) compounds are powerful reducing agents whereas lead (IV) compounds are strong oxidising agents even they belongs to same group (14), this is due to

Options

  1. AMore powerful inert pair effect in Pb than Ge
  2. BThe ionisation energy of Pb < IE of Ge
  3. CPb is more electronegative than Ge
  4. DThe ionic radius of Ge 2+ and Ge 4+ are greater than Pb 2+ and Pb 4+

Correct answer

A. More powerful inert pair effect in Pb than Ge

Step-by-step solution

Inert pair effect increases in 14th group as the atomic number increases. On moving top to bottom on group 14 Z C 6 Si 1 4 Ge 3 2 Sn 5 0 Pb 8 2 &darr; &bull; Atomic number increases &bull; Inert pair effect increases

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