1
AIEEE 2006
MCQ (Single Correct Answer)
+4
-1
Density of a 2.05M solution of acetic acid in water is 1.02 g/mL The molality of the solution is
A
2.28 mol kg-1
B
0.44 mol kg-1
C
1.14 mol kg-1
D
3.28 mol kg-1
2
AIEEE 2005
MCQ (Single Correct Answer)
+4
-1
Two solutions of a substance (non electrolyte) are mixed in the following manner. 480 ml of 1.5 M first solution + 520 ml of 1.2 M second solution. What is the molarity of the final mixture?
A
2.70 M
B
1.344 M
C
1.50 M
D
1.20 M
3
AIEEE 2005
MCQ (Single Correct Answer)
+4
-1
If we consider that 1/6, in place of 1/12, mass of carbon atom is taken to be the relative atomic mass unit, the mass of one mole of the substance will
A
be a function of the molecular mass of the substance
B
remain unchanged
C
increase two fold
D
decrease twice
4
AIEEE 2004
MCQ (Single Correct Answer)
+4
-1
6.02 $$\times$$ 1020 molecules of urea are present in 100 ml of its solution. The concentration of urea solution is
(Avogadro constant, NA = 6.02 $$\times$$ 1023 mol-1)
A
0.02 M
B
0.01 M
C
0.001 M
D
0.1 M
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