Topic: Solutions, Test No.: 05, Total MCQs: 10
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Question 1 |
In the
redox reaction,
2KMnO4 + 3H2SO4 + 5H2C2O4 → K2SO4 + 2MnSO4 + 8H2O + 10CO2
the volume of 0.1M. KMnO4 required to Oxidize 25mL of 0.25 M. H2C2O4 solution is
25 L | |
125 mL | |
25 mL | |
1.25 L |
Question 2 |
In an
oxidation reduction reaction, MnO4 ion is converted to Mn2+.
What is the number of equivalents of KMnO4 (mol. wt = 158) present
in 250 ml of 0.04 M KMnO4 solution?
0.02 | |
0.05 | |
0.04 | |
0.07 |
Question 3 |
What is
the volume (in ml) of 0.1M potassium permanganate solution required to
completely oxidize 100ml of 0.5M ferrous sulphate solution in acidic medium?
20 | |
200 | |
50 | |
100 |
Question 4 |
35.4 mL
of HCl is required for the neutralization of a solution containing 0.275 g of
sodium hydroxide. The normality of hydrochloric acid is
0.194 N | |
0.142 N | |
0.97 N | |
0.244 N |
Question 5 |
The volume of two HCl solutions A(0.5N) and B(0.1N) to be mixed for preparing 2l of 0.2 N HCl solution
0.5 l of A + 1.5 l of B | |
1.5 l of A + 0.5l of B | |
1 l of A + 1 l of B | |
0.75 l of A + 1.25 l of B |
Question 6 |
A mixture of
ethyl alcohol and propyl alcohol has vapour pressure of 290 mm at 300 K. The
vapour pressure of propyl alcohol is 200 mm. If the mole fraction of ethyl
alcohol is 0.6, its vapour pressure (in mm) at the same temperature will be
300 | |
700 | |
360 | |
350 |
Question 7 |
Vapour
pressure of pure ‘A’ is 70 mm of Hg at 25°C.
It forms an ideal solution with ‘B’ in which mole fraction of A is 0.8. If the
vapour pressure of the solution is 84 mm of Hg at 25°C, the vapour pressure of pure ‘B’ at 25°C is
56 m | |
70 mm | |
140 mm | |
28 mm |
Question 8 |
A mixture of
ethane and ethene occupies 41 L at 1 atm and 500 K. The mixture reacts
completely with 10/3 mole of O2 to produce CO2 and H2O.
The mole fractions of ethane and ethene in the mixture are (R = 0.082 L atm K–1
mol–1) respectively
0.50, 0.50 | |
0.75, 0.25 | |
0.67, 0.33 | |
0.25, 0.75 |
Question 9 |
X is
dissolved in water. Maximum boiling point is observed when X is ... (0.1 M
each):
CaSO4 | |
BaCl2 | |
NaCl | |
urea |
Question 10 |
The volume of
10N and 4N HCl required to make 1 litre of 7N HCl are
0.75 litre of 10N HCl and 0.25 litre of 4N HCl | |
0.80 litre of 10N HCl and 0.20 litre of 4N HCl | |
0.60 litre of 10N HCl and 0.40 litre of 4N HCl | |
0.50 litre of 10N HCl and 0.50 litre of 4N HCl |
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