The process that is $NOT$ endothermic in nature is :-
- A$Ar_{(g)} + e^{-} \rightarrow Ar_{(g)}^{-}$
- B$H_{(g)} + e^{-} \rightarrow H_{(g)}^{-}$
- C$Na_{(g)} \rightarrow Na_{(g)}^{+} + e^{-}$
- D$O_{(g)}^{-} + e^{-} \rightarrow O_{(g)}^{2-}$
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Explain the trends in electron gain enthalpy across periods and down groups.
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View SolutionGiven below are two statements:
Statement $I$: Fluorine has most negative electron gain enthalpy in its group.
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In the light of the above statements,choose the most appropriate from the options given below.
Statement $I$: Fluorine has most negative electron gain enthalpy in its group.
Statement $II$: Oxygen has least negative electron gain enthalpy in its group.
In the light of the above statements,choose the most appropriate from the options given below.
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View SolutionFor electron gain enthalpies of the elements denoted as $\Delta_{eg} H$,the incorrect option is :
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