BitsatPeriodic Table And PeriodicityBITSAT 2024MCQ+3 / -12024Electron affinity is positive, whenA$ \mathrm{O}^{2} $ changes into $ \mathrm{O}^{-} $B$ \mathrm{O}^{-} $changes to $ \mathrm{O}^{2-} $C$ \mathrm{O}^{\text {changes into } \mathrm{O}^{+}} $DO changes to $ \mathrm{O}^{2+} $Check AnswerClear SelectionReveal AnswerShow Explanation