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Which of the following molecules is planar?

1. SF₄
2. XeF₄
3. NF₃
4. SiF₄

Correct answer: XeF₄

Solution

XeF₄ is planar because it has a square planar geometry due to sp³d² hybridization and the presence of two lone pairs on xenon, which occupy axial positions and cancel out dipole moments.

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