1. XeF₂ 2. ClF₃ 3. IF₅ 4. SF₄

Answer: 1. XeF₂ Key idea: compare the number of lone pairs on the central atom and their arrangement. XeF₂ : 3 lone pairs on Xe (trigonal bipyramidal electron geometry, all three in the equatorial plane at 120 degrees). ClF₃ : 2 lone pairs. IF₅ : 1 lone pair. SF₄ : 1 lone pair. With three lone pairs, XeF₂ has the most lone pair-lone pair repulsions (three pair interactions versus one in ClF₃ and none in the other two). So the answer is option 1.

Topic: VSEPR theory and shapes of molecules· Chemical Bonding and Molecular Structure

Amongst the following which one will have maximum 'lone pair - lone pair' electron repulsions ?

1. \(XeF_2\)

2. \(ClF_3\)

3. \(IF_5\)

4. \(SF_4\)

Doubtly Asked 30 Oct 2026 NEET UG 2022 Practice test neet Save WhatsApp Report

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Answer: 1. \(XeF_2\)

Key idea: compare the number of lone pairs on the central atom and their arrangement.

\(\mathrm{XeF_2}\): 3 lone pairs on Xe (trigonal bipyramidal electron geometry, all three in the equatorial plane at 120 degrees).
\(\mathrm{ClF_3}\): 2 lone pairs.
\(\mathrm{IF_5}\): 1 lone pair.
\(\mathrm{SF_4}\): 1 lone pair.

With three lone pairs, \(\mathrm{XeF_2}\) has the most lone pair-lone pair repulsions (three pair interactions versus one in \(\mathrm{ClF_3}\) and none in the other two). So the answer is option 1.

Doubtly AI · 30 Oct 2026 AI-generated · not yet verified Report

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Amongst the following which one will have maximum 'lone pair - lone pair' electron repulsions ?

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