1
AIEEE 2006
MCQ (Single Correct Answer)
+4
-1
Which of the following statements is true?
A
H3PO3 is a stronger acid than H2SO3
B
In aqueous medium HF is a stronger acid than HCl
C
HClO4 is a weaker acid than HClO3
D
HNO3 is a stronger acid than HNO2
2
AIEEE 2006
MCQ (Single Correct Answer)
+4
-1
The “spin-only” magnetic moment [in units of Bohr magneton, (µB)] of Ni2+ in aqueous solution would be : (Atomic number of Ni = 28)
A
2.84
B
4.90
C
0
D
1.73
3
AIEEE 2006
MCQ (Single Correct Answer)
+4
-1
Lanthanoid contraction is caused due to :
A
the appreciable shielding on outer electrons by 4f electrons from the nuclear charge
B
the appreciable shielding on outer electrons by 5d electrons from the nuclear charge
C
the same effective nuclear charge from Ce to Lu
D
the imperfect shielding on outer electrons by 4f electrons from the nuclear charge
4
AIEEE 2006
MCQ (Single Correct Answer)
+4
-1
The IUPAC name for the complex [Co(NO2)(NH3)5]Cl2 is
A
nitrito-N-pentaamminecobalt (III) chloride
B
nitrito-N-pentaamminecobalt (II) chloride
C
pentaammine nitrito-N-cobalt (II) chloride
D
pentaammine nitrito-N-cobalt (III) chloride
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