Statement-I: 1st IE of Mg is higher than that of Na, but the 2nd IE of Na is higher than that of Mg.Statement-II: Mg has pair of electrons in valence shell while Al has one unpaired electron in valence shell.
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a
Both Statement-I and Statement-II are correct
b
Statement-I is correct and Statement-II is incorrect
c
Statement-I is incorrect and Statement-II is correct
d
Both statement-I and Statement-II are incorrect
answer is B.
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Detailed Solution
Based on valence shell electronic configurations of Na,Mg
Statement-I: 1st IE of Mg is higher than that of Na, but the 2nd IE of Na is higher than that of Mg.Statement-II: Mg has pair of electrons in valence shell while Al has one unpaired electron in valence shell.