Correct order of electron affinity is/are: (a) \( \mathrm{S}\mathrm{O} \) (b) \( \mathrm{Al}\mat...

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Correct order of electron affinity is/are:
(a) \( \mathrm{S}\mathrm{O} \)
(b) \( \mathrm{Al}\mathrm{B} \)
(c) \( \mathrm{Mg}\mathrm{Na} \)
(d) \( \mathrm{P}\mathrm{N} \)
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