1
AIEEE 2011
MCQ (Single Correct Answer)
+4
-1
Which one of the following order represents the correct sequence of the increasing basic nature of the given oxides ?
A
MgO < K2O < Al2O3 < Na2O
B
Al2O3 < MgO < Na2O < K2O
C
Na2O < K2O < MgO < Al2O3
D
K2O < Na2O < Al2O3 < MgO
2
AIEEE 2010
MCQ (Single Correct Answer)
+4
-1
The correct sequence which shows decreasing order of the ionic radii of the elements is
A
Al3+ > Mg2+ > Na+ > F- > O2-
B
Na+ > Mg2+ > Al3+ > O2– > F
C
Na+ > F > Mg2+ > O2– > Al3+
D
O2– > F > Na+ > Mg2+ > Al3+
3
AIEEE 2009
MCQ (Single Correct Answer)
+4
-1
In which of the following arrangements, the sequence is not strictly according to the property written against it
A
CO2 < SiO2 < SnO2 < PbO2 : increasing oxidising power
B
HF < HCl < HBr, HI : increasing acid strength
C
NH3 < PH3 < AsH3 < SbH3 : increasing basic strength
D
B < C < O < N : increasing first ionization enthalpy
4
AIEEE 2009
MCQ (Single Correct Answer)
+4
-1
The set representing the correct order of ionic radius is :
A
$$N{a^ + } > L{i^ + } > M{g^{2 + }} > B{e^{2 + }}$$
B
$$L{i^ + } > N{a^ + } > M{g^{2 + }} > B{e^{2 + }}$$
C
$$M{g^{2 + }} > B{e^{2 + }} > L{i^ + } > N{a^ + }$$
D
$$L{i^ + } > B{e^{2 + }} > N{a^ + } > M{g^{2 + }}$$
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