1
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
2
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$$-$$
3
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$$-$$
4
AIPMT 2006
MCQ (Single Correct Answer)
+4
-1
Which one of the following orders is not in accordance with the property stated against it?
A
F2 > Cl2 > Br2 > I2 : Bond dissociation energy
B
F2 > Cl2 > Br2 > I2 : Oxidising power
C
HI > HBr > HCl > HF : Acidic property in water
D
F2 > Cl2 > Br2 > I2 : Electronegativity.
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