1
AIPMT 2007
MCQ (Single Correct Answer)
+4
-1
Identify the correct order of the size of the following :
A
Ca2+ < K+ < Ar < Cl$$-$$ < S2$$-$$
B
Ar < Ca2+ < K+ < Cl$$-$$ < S2$$-$$
C
Ca2+ < Ar < K+ < Cl$$-$$ < S2$$-$$
D
Ca2+ < K+ < Ar < S2$$-$$ < Cl$$-$$
2
AIPMT 2007
MCQ (Single Correct Answer)
+4
-1
Which one of the following ionic species has the greatest proton affinity to form stable compound ?
A
NH$$_2^ - $$
B
F$$-$$
C
I$$-$$
D
HS$$-$$
3
AIPMT 2007
MCQ (Single Correct Answer)
+4
-1
With which of the following electronic configuration an atom has the lowest ionisation enthalpy ?
A
1s2 2s2 2p3
B
1s2 2s2 2p5 3s1
C
1s2 2s2 2p6
D
1s2 2s2 2p5
4
AIPMT 2007
MCQ (Single Correct Answer)
+4
-1
In which of the following pairs, the two species are isostructural?
A
SO$${_3^{2 - }}$$ and NO$${_3^{ - }}$$
B
BF3 and NF3
C
BrO$${_3^{ - }}$$ and XeO3
D
SF4 and XeF4
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