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

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asked Mar 31, 2018 in Chemistry by paayal (26,720 points) ● 4 ● 6 ● 45

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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answered Mar 31, 2018 by sanjaydas (61,430 points) ● 5 ● 7 ● 7
selected Apr 1, 2018 by Vikash Kumar
 
Best answer

(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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