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Question

A molecule that can't exist theoretically is:


  1. SF4

  2. OF2

  3. OF4

  4. O2F2

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Solution

The correct option is C

OF4


Explanation for correct option:

C. OF4

  • This molecule does not exist theoretically.
  • In OF4, Oxygen exhibits the valency of 4 which is not possible as the valency of Oxygen is 2.

Explanation for incorrect options:

A. SF4

  • SF4 exist as trigonal bipyramidal shape.
  • It is a polar molecule.

B. OF2

  • Oxygen difluoride is a chemical compound with a chemical formula OF2.
  • As predicted by VSEPR theory, the molecule adopts a "bent" molecular geometry.

C. O2F2

  • Dioxygen difluoride is a compound of fluorine and oxygen with the molecular formula O2F2.

Hence, the correct option is C i.e. OF4 does not exist theoretically.


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