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Which one of the following is paramagnetic?

1. (a) Cl₂O
2. (b) ClO₂
3. (c) Cl₂O₇
4. (d) Cl₂O₆

Correct answer: (b) ClO₂

Solution

ClO₂ is paramagnetic because it has an unpaired electron in its molecular orbital configuration, making it exhibit magnetic properties. The other options are diamagnetic as they do not have unpaired electrons.

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