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JEE Main 2026 Chemistry question

ChemistryClassification of Elements and Periodicity in PropertiesJEE Main 2026

In a period, the first ionisation enthalpy of the element at extreme left and the negative electron gain enthalpy of the extreme right element, except noble gases, are respectively.

Answer: (C)

Solution

The alkali metal at the extreme left has the lowest first ionisation enthalpy in its period. The

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Question ID VK-015617