JEE Main · 2019 · Shift-IImediumPB12-107

The ion that has sp3d2 hybridization for the central atom is:

p-Block Elements (Class 12) · Class 12 · JEE Main Previous Year Question

Question

The ion that has sp3d2\mathrm{sp^3d^2} hybridization for the central atom is:

Options
  1. a

    [BrF2][\mathrm{BrF_2}]^-

  2. b

    [ICl4][\mathrm{ICl_4}]^-

  3. c

    [IF6][\mathrm{IF_6}]^-

  4. d

    [ICl2][\mathrm{ICl_2}]^-

Correct Answerb

[ICl4][\mathrm{ICl_4}]^-

Detailed Solution

Hybridization analysis:

| Ion | Electron pairs | Hybridization | |---|---|---| | [BrF2][\mathrm{BrF_2}]^- | 2 bp + 3 lp = 5 | sp3d\mathrm{sp^3d} | | [ICl4][\mathrm{ICl_4}]^- | 4 bp + 2 lp = 6 | sp3d2\mathrm{sp^3d^2} ✓ | | [IF6][\mathrm{IF_6}]^- | 6 bp + 1 lp = 7 | sp3d3\mathrm{sp^3d^3} | | [ICl2][\mathrm{ICl_2}]^- | 2 bp + 3 lp = 5 | sp3d\mathrm{sp^3d} |

[ICl4][\mathrm{ICl_4}]^- has 6 electron pairs → sp3d2\mathrm{sp^3d^2} hybridization → square planar geometry.

Answer: Option (2) — [ICl4][\mathrm{ICl_4}]^-

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