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JEE Main Chemistry question

ChemistryClassification of Elements and Periodicity in PropertiesJEE Main

Ionisation energy in group 1-A varies in the decreasing order as [OJEE 2005]

Answer: (A)

Solution

Descending Group 1, atomic size steadily increases, so the outer electron is progressively easier to remove and ionisation energy steadily decreases: . The

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Question ID VK-133208