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Electron affinity is positive when
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By Expert Faculty of Sri Chaitanya
a
O- is formed from O
b
O2- is formed from O-
c
O+ is formed from O
d
O3- is formed from O-
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Correct option is B
O(g)−+e−→O(g)2−+E,(ΔH=+ve); Endoenergic).
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