AP EAMCET Engineering 26 Apr 2017 Shift 1 Paper

Section: Chemistry

Question : 123 of 160

Marks: +1, -0

Assertion (A): Na+ and Mg2+ ions are isoelectronic bur the ionic radius of Na2+ is greater than that of Mg2+
Reason (R): The effective nuclear charge of Na+ ion is less than that of Mg2+ ion

Both (A) and (R) are correct and (R) is correct explanation of (A)
Both (A) and (R) are correct but (R) is not the correct explanation of (A)
(A) is correct but (R) is not correct
(A) is not correct but (R) is correct

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