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  3. Chemistry
  4. The stability of dihalides of Si, Ge, Sn and Pb increases steadily in the sequence

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

AIEEEAIEEE 2007The p-Block Elements

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, (3) is correct.