Which of the following species has maximum number of lone-pair of electrons on the central atom ?

Which of the following species has maximum number of lone-pair of electrons on the central atom ?

Q. Which of the following species has maximum number of lone-pair of electrons on the central atom ?

  1. XeF2
  2. H3O+
  3. XeF4
  4. XeF6

Answer: XeF2

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