Question

Which of the following is having maximum number of dπ- pπ bonds ?

(1) XeO3

(2) XeOF4

(3) XeO2F2

(4) Co2-3

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Answer 1

Answer:

XeOF4

Explanation:

answer is option b

Answer 2

(2) XeO₂F₄ is the appropriate answer.

Explanation:

• The formation of dπ– pπ bonding dictates the geometry of the molecules.
• Example– (i) (CH3 )3N is pyramidal but (SiH3)3N and (GeH3)3N are planar.
• This is due to the fact that N(2pz)–Si(3d) or N(2pz)–Ge(4d) π overlap which makes them planer. These bonds are shorter than the single bond length.
• In the molecule, XeO₂F₂ there are 6 dΠ−pΠ bonds formed among the d orbitals of Xe and 2p orbitals of O and F. Hence XeO₂F₄ is the appropriate answer.

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