Q.
The ionic radius of Na+ is 1.02A° . The ionic radii (in A° ) of Mg2+ and Al3+, respectively, are:
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a
0.85 and 0.99
b
0.68 and 0.72
c
1.05 and 0.99
d
0.72 and 0.54
answer is D.
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Detailed Solution
Ionic size = Na+>Mg+2>Al+3⇒1.02A0>0.72A0>0.54A0
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