Test: Colligative Properties and Abnormal Molecular Masses - JEE MCQ
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15 Questions MCQ Test - Test: Colligative Properties and Abnormal Molecular Masses
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Test: Colligative Properties and Abnormal Molecular Masses - Question 1
What is the van't Hoff factor of Ferric Sulphate (Assume 
ionization)
ionization)
Detailed Solution for Test: Colligative Properties and Abnormal Molecular Masses - Question 1
(complete ionization)
Test: Colligative Properties and Abnormal Molecular Masses - Question 2
Relative lowering of vapour pressure is directly proportional to
Detailed Solution for Test: Colligative Properties and Abnormal Molecular Masses - Question 2
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Test: Colligative Properties and Abnormal Molecular Masses - Question 3
When common salt is dissolved in water:
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Test: Colligative Properties and Abnormal Molecular Masses - Question 4
Camphor is used as solvent to determine the molecular mass of non-volatile solute by Rast method because for camphor
Detailed Solution for Test: Colligative Properties and Abnormal Molecular Masses - Question 4
Test: Colligative Properties and Abnormal Molecular Masses - Question 5
of an aqueous solution of a protein contains its 
. The osmotic pressure of this solution at 
is found to be 
bar. The molar mass of protein will be 
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Test: Colligative Properties and Abnormal Molecular Masses - Question 6
The difference between the boiling point and freezing point of an aqueous solution containing sucrose (molecular 
in 
of water is 
. If 
and 
of water are 
and 
respectively, the weight of sucrose in the solution is about
Detailed Solution for Test: Colligative Properties and Abnormal Molecular Masses - Question 6
i.e., 
moles in 
water
moles in 
water
Test: Colligative Properties and Abnormal Molecular Masses - Question 7
A solution containing 1.8 g of a compound (empirical formula CH2O) in 40 g of water is observed to freeze at −0.465∘C. The molecular formula of the compound is (Kf of water = 1.86 kg K mol−1)
Detailed Solution for Test: Colligative Properties and Abnormal Molecular Masses - Question 7
Test: Colligative Properties and Abnormal Molecular Masses - Question 8
Freezing point of an aqueous solution is 
. If the values of 
and 
of water are respectively 
and 
, then the elevation of boiling point of the solution in 
is
. If the values of and of water are respectively and , then the elevation of boiling point of the solution in is
Detailed Solution for Test: Colligative Properties and Abnormal Molecular Masses - Question 8
Test: Colligative Properties and Abnormal Molecular Masses - Question 9
If the elevation in boiling point of a solution of 
of solute 
. wt. 
in 
of water is 
, the ebullioscopic constant of water is
Detailed Solution for Test: Colligative Properties and Abnormal Molecular Masses - Question 9
Test: Colligative Properties and Abnormal Molecular Masses - Question 10
Which one of the following statements is incorrect?
Detailed Solution for Test: Colligative Properties and Abnormal Molecular Masses - Question 10
Test: Colligative Properties and Abnormal Molecular Masses - Question 11
and 
atm are the osmotic pressures of 
(mass/volume) solutions of urea, fructose, sucrose and 
respectively at certain temperature. The correct order of their magnitudes is :
Detailed Solution for Test: Colligative Properties and Abnormal Molecular Masses - Question 11
;
(effective)
Test: Colligative Properties and Abnormal Molecular Masses - Question 12
Which of the following has been arranged in the increasing order of freezing point?
Detailed Solution for Test: Colligative Properties and Abnormal Molecular Masses - Question 12
, higher the 
value and lower the freezing point.
Test: Colligative Properties and Abnormal Molecular Masses - Question 13
1.0 
aqueous solution of 
freezes at 
. Assuming complete ionization of the hydrated complex, which of the following isomers conforms to the observation 
for water 
?
aqueous solution of freezes at . Assuming complete ionization of the hydrated complex, which of the following isomers conforms to the observation for water ?
Detailed Solution for Test: Colligative Properties and Abnormal Molecular Masses - Question 13
Test: Colligative Properties and Abnormal Molecular Masses - Question 14
A living cell contains a solution which is isotonic with 
glucose solution. What osmotic pressure develops when the cell is placed in 
solution at 
glucose solution. What osmotic pressure develops when the cell is placed in solution at
Detailed Solution for Test: Colligative Properties and Abnormal Molecular Masses - Question 14
ionized 
number of ions afterionization 
Test: Colligative Properties and Abnormal Molecular Masses - Question 15
A solution of 0.5 g of a solute (molar mass = 150 g mol−1) in 50 g of a solvent yields a boiling point elevation of 0.40 K. Another solution of 0.60 g of an unknown solute in the same mass of solvent exhibits a boiling point elevation of 0.8 K. The molar mass of unknown solute is :
Detailed Solution for Test: Colligative Properties and Abnormal Molecular Masses - Question 15
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