Chemistry · 2022
JEE Main · 28 July 2022, Shift 1 · Q83
The number of paramagnetic species among the following is \ \ \ \. B_2, Li_2, C_2, C_2^-, O_2^2-, O_2^+ and He_2^+
The number of paramagnetic species among the following is \_\_\_\_. $\displaystyle \mathrm{B}_2, \mathrm{Li}_2, \mathrm{C}_2, \mathrm{C}_2^{-}, \mathrm{O}_2^{2-}, \mathrm{O}_2^{+}$ and $\displaystyle \mathrm{He}_2^{+}$
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4
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