What is the structure of XeF6? from Chemistry Chemical Bonding a

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 Multiple Choice QuestionsMultiple Choice Questions

351.

The bond angle is maximum in PI3,which is

Iodide PI3 AsI3 SbI3
Bond angle 102 100°2' 99°
  • due to small size of P

  • due to more bp-bp repulsion in PI3

  • due to less electronegativity of P

  • None of the above


352.

The shape of [PtCl3(C2H4)]- and the hybridisation of Pt respectively are

  • tetrahedral, sp3

  • trigonal pyramidal, sp3

  • square planar, dsp2

  • square planar, d2sp3


353.

Among the following compounds both coloured and paramagnetic one is

  • K2Cr2O7

  • VOSO4

  • (NH4)2.[TiCl2]

  • K3[Cu(CN)4]


354.

Which of the following has maximum bond energy?

  • C=C

  • C=O

  • O=O

  • N=O


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355.

The number of lone pair(s) of electrons on the central atom is [BrF4]-, XeF6 and [SbCl6]3- are, respectively

  • 2, 1 and 1

  • 2, 1 and 0

  • 2, 0 and 1

  • 1, 0 and 0


356.

The lewis acidity of BF3 is less than BCl3 even though fluorine is more electrongative than chlorine. It is due to

  • stronger 1p (B)-3p(Cl) σ- bonding

  • stronger 2p(B) - 3p(Cl) π-bonding

  • stonger 2p(B) - 2p(F)  σ- bonding

  • stronger 2p(B)- 2p(F) π-bonding


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357.

What is the structure of XeF6?

  • Tetrahedral

  • Distorted octahedral

  • Octahedral

  • None of these


B.

Distorted octahedral

For XeF6,

H = 12 [ V+Y- C+A]

   = 12 [ 8 +6 + 0 + 0] = 7

Hybridisation = sp3d3

Due to the presence of one lone pair of electron, XeF6 has distorted octahedral geometry.


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358.

The geometry around the central atom in ClF4+ is

  • octahedral

  • trigonal bipyramidal

  • square planar

  • square pyramidal


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359.

The shape of XeO2F2 molecule is

  • trigonal bipyramidal

  • square planar

  • tetrahedral

  • see-saw


360.

In OF2, oxygen has hybridisation of

  • sp3

  • sp2

  • sp

  • None of these


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