JEE Main 2022 · 28 Jul · Shift 1 · Chemistry Q83

ChemistryInteger+4 / -1Question 83 of 90

The number of paramagnetic species among the following is ______.

$\mathrm{B_2}$ , $\mathrm{Li_2}$ , $\mathrm{C_2}$ , $\mathrm{C_2^-}$ , $\mathrm{O_2^{2-}}$ , $\mathrm{O_2^+}$ and $\mathrm{He_2^+}$

Your answer

Answer and worked solution

Official answer: 4

Paramagnetic. $\mathrm{B_2}$ , $\mathrm{C_2^-}$ , $\mathrm{O_2^+}$ and $\mathrm{He_2^+}$ .

$\mathrm{Li_2}$ , $\mathrm{C_2}$ and $\mathrm{O_2^{2-}}$ are diamagnetic.

Answer: 4

JEE Main 2022 · 28 Jul · Shift 1, Chemistry question 83