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  4. The number of paramagnetic species among the following is B 2, Li 2, C 2, C 2-, O 22-, O 2+ text and He 2+

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Q. The number of paramagnetic species among the following is ___
$B _2, Li _2, C _2, C _2^{-}, O _2^{2-}, O _2^{+} \text {and } He _2^{+}$

JEE MainJEE Main 2022Chemical Bonding and Molecular Structure

Solution:

Paramagnetic $B _2, C _2^{-}, O _2^{+}, He _2^{+}$