1
AIPMT 2011 Prelims
MCQ (Single Correct Answer)
+4
-1
Which of the following carbonyls will have the strongest C $$-$$ O bond?
A
Mn(CO)6+
B
Cr(CO)6
C
V(CO)6$$-$$
D
Fe(CO)5
2
AIPMT 2011 Prelims
MCQ (Single Correct Answer)
+4
-1
Which of the following complex compounds will exhibit highest paramagnetic behaviour?
A
[Ti(NH3)6]3+
B
[Cr(NH3)6]3+
C
[Co(NH3)6]3+
D
[Zn(NH3)6]2+
3
AIPMT 2011 Prelims
MCQ (Single Correct Answer)
+4
-1
A buffer solution is prepared in which the concentration of NH3 is 0.30 M and the concentration of NH+4 is 0.20 M. If the equilibrium constant, Kb for NH3 equals 1.8 $$ \times $$ 10$$-$$5, what is the pH of this solution? (log 2.7 = 0.43)
A
9.08
B
9.43
C
11.72
D
8.73
4
AIPMT 2011 Prelims
MCQ (Single Correct Answer)
+4
-1
If n = 6, the correct sequence for filling of electrons will be
A
$$ns \to \left( {n - 2} \right)f \to \left( {n - 1} \right)d \to np$$
B
$$ns \to \left( {n - 1} \right)d \to \left( {n - 2} \right)f \to np$$
C
$$ns \to \left( {n - 2} \right)f \to np \to \left( {n - 1} \right)d$$
D
$$ns \to np\left( {n - 1} \right)d \to \left( {n - 2} \right)f$$
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