Topic: Solutions, Test No.: 08, Total MCQs: 10
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Question 1 |
The
vapour pressure of water at 23°C is 19.8 mm. 0.1 mole of glucose is dissolved
in 178.2 g of water. What is the vapour pressure (in mm) of the resultant
solution?
19.0 | |
19.602 | |
19.402 | |
19.202 |
Question 2 |
Equal
volumes of 0.1 M and 0.2 M NaCl solutions are mixed. The concentration of
nitrate ions in the resultant mixture will be
0.1 M | |
0.2 M | |
0.05 M | |
0.15 M |
Question 3 |
25 mL of
a solution of barium hydroxide on titration with 0.1 molar solution of
hydrochloric acid gave a tire value of 35 mL. The molarity of barium hydroxide
solution was
0.28 | |
0.14 | |
0.07 | |
0.35 |
Question 4 |
Equal masses
of methane and oxygen are mixed in an empty container at 25°C. The fraction of the total pressure
exerted by oxygen is
2/3 | |
1/3 × 273/298 | |
1/3 | |
1/2 |
Question 5 |
2N HCl
solution will have same molar concentration as a
4.0N H2SO4 | |
0.5N H2SO4 | |
1N H2SO4 | |
2N H2SO4 |
Question 6 |
0.004 M Na2SO4
is isotonic with 0.01 M Glucose. Degree of dissociation of Na2SO4
is
75% | |
50% | |
25% | |
85% |
Question 7 |
10 cm3
of 0.1 N monobasic acid requires 15 cm3 of sodium hydroxide solution
whose normality is
1.5 N | |
0.15 N | |
0.066 N | |
0.66 N |
Question 8 |
20 ml of 0.1
M acetic acid is mixed with 50 ml of Potassium acetate. Ka of acetic acid = 1.8 × 10−5
at 27°C. The concentration of Potassium acetate if pH of the mixture is 4.8
0.1 M | |
0.04 M | |
0.4 M | |
0.02 M |
Question 9 |
A binary
liquid solution is prepared by mixing n-heptane and ethanol. Which one of the
following statements is correct regarding the behavior of the solution?
The solution is non-ideal, showing +ve deviation from Raoult's Law | |
The solution is non-ideal, showing –ve deviation from Raoult's Law | |
n-heptane shows +ve deviation while ethanol shows –ve deviation from Raoult's Law | |
The solution formed is an ideal solution |
Question 10 |
The empirical formula of a nonelectrolyte is CH2O. A
solution containing 3g of the compound exerts the same osmotic pressure as that
of 0.05 M glucose solution. The molecular formula of the compound is
C2H4O2 | |
CH2O | |
C3H6O3 | |
C4H8O4 |
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