Which set consists of paramagnetic molecules | vedclass

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Question

(B) molecule or ion is paramagnetic if it contains at least one unpaired electron. $NO$ $(15 \ e^-)$ and $NO_2$ $(23 \ e^-)$ are odd-electron species

Vedclass · Accepted Answer

$O_2^+, O_2^-, NO, NO_2$

Vedclass · Answer

(B) molecule or ion is paramagnetic if it contains at least one unpaired electron. $NO$ $(15 \ e^-)$ and $NO_2$ $(23 \ e^-)$ are odd-electron species and are paramagnetic. $O_2^+$ $(15 \ e^-)$ has one unpaired electron in the $\pi^* 2p$ orbital,making it paramagnetic. $O_2^-$ $(17 \ e^-)$ has one unpaired electron in the $\pi^* 2p$ orbital,making it paramagnetic. Therefore,the set $O_2^+, O_2^-, NO, NO_2$ contains only paramagnetic species.

Which set consists of paramagnetic molecules or ions?

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