1
AIEEE 2005
MCQ (Single Correct Answer)
+4
-1
Which of the following factors may be regarded as the main cause of lanthanide contraction?
A
Poor shielding of one of 4f electron by another in the subshell
B
Effective shielding of one of 4f electrons by another in the subshell
C
Poorer shielding of 5d electrons by 4f electrons
D
Greater shielding of 5d electrons by 4f electrons
2
AIEEE 2005
MCQ (Single Correct Answer)
+4
-1
The IUPAC name of the coordination compound K3[Fe(CN)6] is
A
Potassium hexacyanoferrate (II)
B
Potassium hexacyanoferrate (III)
C
Potassium hexacyanoiron (II)
D
Tripotassium hexcyanoiron (II)
3
AIEEE 2005
MCQ (Single Correct Answer)
+4
-1
The oxidation state of Cr in [Cr(NH3)4Cl2]+ is :
A
+3
B
+2
C
+1
D
0
4
AIEEE 2005
MCQ (Single Correct Answer)
+4
-1
Which of the following compounds shows optical isomerism?
A
[Cu(NH3)4]+2
B
[ZnCl4]-2
C
[Cr(C2O4)3]-3
D
[Co(CN)6]-3
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