Exams › JEE Main › Chemistry

For the molecules XeF₂, XeF₄, and XeF₆, what are the respective numbers of lone pairs present on the xenon atom?

1. 2, 3, 1
2. 1, 2, 3
3. 4, 1, 2
4. 3, 2, 1

Correct answer: 3, 2, 1

Solution

The correct option indicates that xenon in XeF₂ has three lone pairs, in XeF₄ it has two lone pairs, and in XeF₆ it has one lone pair. This is consistent with the molecular geometry and valence shell electron pair repulsion theory, which accounts for the bonding and lone pairs around the xenon atom.

Related JEE Main Chemistry questions

• Although the electronegativity gap between N and F is larger than that between N and H, ammonia has a dipole moment of 1.5 D while nitrogen trifluoride has only 0.2 D. The reason is that
• When N₂ is converted into N₂⁺, the dissociation energy of the N–N bond ______, and when O₂ is converted into O₂⁺, the dissociation energy of the O–O bond ______.
• From the ions listed below, which pair has geometries that can be accounted for by the same type of orbital hybridization? NO₂⁻, NO₃⁻, NH₂⁻, NH₄⁺, SCN⁻
• Atoms A and B have electronegativities of 1.20 and 4.0, respectively. What is the percentage ionic character of the A–B bond?
• In the phosphate ion, PO₄³⁻, what is the formal charge on an oxygen atom that is singly bonded to phosphorus in a P–O bond?
• Among the following species, which one has no unpaired electrons?

⚔️ Practice JEE Main Chemistry free + battle 1v1 →