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Which among the following molecules is NOT planar?

1. H2O
2. BrF3
3. XeF4
4. None of these

Correct answer: None of these

Solution

All three molecules — H2O (bent, 3 atoms always coplanar), BrF3 (T-shaped, all 4 atoms in one plane), and XeF4 (square planar) — are planar, so none of them is non-planar, making 'None of these' the correct answer.

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