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Which one of the following statements is incorrect?

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a
Greater is the nuclear charge , greater is the negative electron gain enthalpy.
b
Nitrogen has almost zero electron gain enthalpy.
c
Negative electron gain enthalpy decreases from fluorine to iodine in the group.
d
Chlorine has highest negative electron gain enthalpy.

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detailed solution

Correct option is C

The electron gain enthalpy typically falls as one moves down the group as a result of an increase in atomic size, however travelling from F to Cl results in an increase in electron gain enthalpy.

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