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JEE CHEMISTRY MCQ: CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

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The enthalpy change accompanying in the given reaction,

X(g)+e^{-} \longrightarrow X^{-}(g)

is defined as

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Correct option: A

Electron gain enthalpy

Option A (Electron gain enthalpy) is correct because the given reaction represents the addition of an electron to a gaseous atom, which is the definition of electron gain enthalpy.

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