When an electron is added to neutral gaseous atom to convert it into a negative ion, the enthalpy change accompanying the process is called:

Electron gain enthalpy

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Hydration enthalpy

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Lattice enthalpy

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Ionisation enthalpy

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Solution

The correct option is A
Electron gain enthalpy

When an electron is added to neutral gaseous atom to convert it into a negative ion, the enthalpy change accompanying the process is called Electron gain enthalpy.

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