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

  • Option 1)

    PbX_2\ll SnX_2\ll GeX_2\ll SiX_2

  • Option 2)

    GeX_2\ll SiX_2\ll SnX_2\ll\, PbX_2

  • Option 3)

    SiX_2\ll GeX_2\ll\, PbX_2 \ll\, SnX_2

  • Option 4)

    SiX_2\ll GeX_2 \ll\, SnX_2 \ll\, PbX_2

 

Answers (1)

As we learnt in 

Oxidation state of carbon family -

Exhibits O.S. of +4L and +2 (ionic) Ge, Sn and Pb +2 o.s. is prominent due to inert pair effect

-

 

 Due to inert pair effect, the stability of +2 oxidization state increases down the group.


Option 1)

PbX_2\ll SnX_2\ll GeX_2\ll SiX_2

This option is incorrect.

Option 2)

GeX_2\ll SiX_2\ll SnX_2\ll\, PbX_2

This option is incorrect.

Option 3)

SiX_2\ll GeX_2\ll\, PbX_2 \ll\, SnX_2

This option is incorrect.

Option 4)

SiX_2\ll GeX_2 \ll\, SnX_2 \ll\, PbX_2

This option is correct.

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