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1
AIPMT 2010 Prelims
MCQ (Single Correct Answer)
+4
-1
In a buffer solution containing equal concentration of B$$-$$ and HB, the Kb for B$$-$$ is 10$$-$$10. The pH of buffer solution is
A
10
B
7
C
6
D
4
2
AIPMT 2009
MCQ (Single Correct Answer)
+4
-1
Which of the following molecules acts as a Lewis acid?
A
(CH3)2O
B
(CH3)3P
C
(CH3)3N
D
(CH3)3B
3
AIPMT 2009
MCQ (Single Correct Answer)
+4
-1
The ionization constant of ammonium hydroxide is 1.77 $$ \times $$ 10$$-$$5 at 298 K. Hydrolysis constant of ammonium chloride is
A
6.50 $$ \times $$ 10$$-$$12
B
5.65 $$ \times $$ 10$$-$$13
C
5.65 $$ \times $$ 10$$-$$12
D
5.65 $$ \times $$ 10$$-$$10
4
AIPMT 2009
MCQ (Single Correct Answer)
+4
-1
What is the [OH$$-$$] in the final solution prepared by mixing 20.0 mL of 0.050 M HCl with 30.0 mL of 0.10 M Ba(OH)2?
A
0.40 M
B
0.0050 M
C
0.12 M
D
0.10 M
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