In which of the following processes is energy absorbed?
- A$Cl + e^- \to Cl^-$
- B$O^- + e^- \to O^{2-}$
- C$O^{2-} - e^- \to O^-$
- D$Na^+ + e^- \to Na$
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If the electron affinity of an element $M$ is $x \ kJ/mol$,then the ionisation potential of this element is:
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$(i)$ $O$ or $F$
$(ii)$ $F$ or $Cl$
$(i)$ $O$ or $F$
$(ii)$ $F$ or $Cl$
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View SolutionIdentify the set of elements in which they are arranged in the increasing order of electron gain enthalpies.
In which of the following processes is energy released?
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