Q16 / 100 · BITSAT 2022 · Chemistry

Ge (II) compounds are powerful reducing agents whereas $\mathrm{Pb}$ (IV) compounds are strong oxidants. It can be because

  • A
    $\mathrm{Pb}$ is more electropositive than $\mathrm{Ge}$.
  • B
    ionisation potential of lead is less than that of Ge.
  • C
    ionic radii of $\mathrm{Pb}^{2+}$ and $\mathrm{Pb}^{4+}$ are larger than that of $\mathrm{Ge}^{2+}$ and $\mathrm{Ge}^{4+}$
  • Correct answer
    D
    more pronounced inert pair effect in lead has.

Solution

Inert pair effect is more pronounced in heavier members like Pb. Hence, $\mathrm{Pb}$ (IV) compounds act as strong oxidising agents and are reduced to more stable $\mathrm{Pb}$ (II) compounds.

Hence, the correct answer is option: 'D'.

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