1
AIPMT 2010 Mains
MCQ (Single Correct Answer)
+4
-1
Which of the following oxidation states is the most common among the lanthanoids?
A
4
B
2
C
5
D
3
2
AIPMT 2010 Prelims
MCQ (Single Correct Answer)
+4
-1
Which of the following ions will exhibit colour in aqueous solutions?
A
La3+ (Z = 57)
B
Ti3+ (Z = 22)
C
Lu3+ (Z = 71)
D
Se3+ (Z = 21)
3
AIPMT 2010 Prelims
MCQ (Single Correct Answer)
+4
-1
Which of the following pairs has the same size?
A
Fe2+, Ni2+
B
Zr4+, Ti4+
C
Zr4+, Hf4+
D
Zn2+, Hf4+
4
AIPMT 2010 Prelims
MCQ (Single Correct Answer)
+4
-1
Which of the following ions has electronic configuration [Ar]3d6?
(At. nos. Mn = 25, Fe = 26, Co = 27, Ni = 28)
A
Ni3+
B
Mn3+
C
Fe3+
D
Co3+
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