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JEE Main2007ChemistryClassification of Elements and Periodicity in PropertiesActual

The stability of dihalides of Si , Ge , Sn and Pb increases steadily in the sequence

Options

  1. AGeX ₂ SiX ₂ SnX₂ PbX ₂
  2. BSiX ₂ GeX ₂ PbX ₂ SnX ₂
  3. CSiX ₂ GeX ₂ SnX ₂ PbX ₂
  4. DPbX ₂ SnX ₂ GeX ₂ SiX ₂

Correct answer

C. SiX ₂ GeX ₂ SnX ₂ PbX ₂

Step-by-step solution

Due to inert pair effect, the stability of +2 oxidation state increases as we move down this group. SiX ₂ GeX ₂ SnX ₂ PbX ₂ Hence, (C) is correct.

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