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NEET-XII-Chemistry

Previous Year Paper year:2017

with Solutions - page 3
Qstn# 37 Prvs-QstnNext-Qstn
  • #37
    Which of the following pairs of compounds is
    isoelectronic and isostructural ?
    (1)`` IF_3, XeF_2``
    (2) ``BeCl_2, XeF_2``
    (3) ``TeI_2, XeF_2``
    (4) ``IBr_2, XeF_2``
    digAnsr:   4
    Ans : (4)
    Sol. IBr2- and XeF2 are isoelectronic because they conation same number of valence electron and both are linear.
    I Br2 - sp3d linear
    Br
    Br
    I
    -
    Xe F2 sp3d linear
    F
    F
    Xe
    -