The stability of dihalides of Si, Ge, Sn and Pb increases steadily in the sequence
The stability of dihalides of Si, Ge, Sn and Pb increases steadily in the sequence
(a) PbX2 << SnX2 << GeX2 << SiX2
(b) GeX2 << SiX2 << SnX2 << PbX2
(c) SiX2<< GeX2 << PbX2 << SnX2
(d) SiX2 << GeX2 << SnX2 << PbX2 .
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(c) : Due to the inert pair effect (the reluctance of ns2 electrons of outermost shell to participate in bonding) the stability of M2+ ions (of group IV elements) increases as we go down the group.
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Correct option (B)SiX2 ≤ Gex2 ≤ PbX2 ≤ SnX2
Explanation:
Due to inert pair effect, stability of +2 oxidation state increases as we move down this groupSiX2 ≤ Gex2 ≤ PbX2 ≤ SnX2
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