Solutions  MCQs

MCQs of Solutions

Showing 11 to 20 out of 157 Questions
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11.
What is the value of van't Hoff factor for dilute FeCl3 (aqueous) solution ?
(a) 1
(b) <1
(c) >1
(d) zero
Answer:

Option (c)

12.
What is the value of van't Hoff factor when acetic acid is dissolved in benzene ?
(a) Zero
(b) 1
(c) >1
(d) <1
Answer:

Option (d)

13.
What is the molality for 10% W/W NaOH(aq) solution ?
(a) 2.778
(b) 2.5
(c) 10
(d) 5
Answer:

Option (a)

14.
For which solution the value of van't Hoff factor is one ?
(a) NaCl
(b) KNO3
(c) glucose
(d) CH3COOH
Answer:

Option (c)

15.
For which solution the value of van't Hoff factor is not 1 ?
(a) Glucose
(b) Sugar
(c) Fructose
(d) Acetic acid
Answer:

Option (d)

16.
The real vapour pressure for non-ideal solution is _____ than by Raoult's law
(a) more
(b) less
(c) equal
(d) (A) and (B) both
Answer:

Option (d)

17.
Which of the following solution is hypotonic ?
(a) 0.1 M NaCl
(b) 0.1 M sugar
(c) 0.1 M Na2SO4
(d) 0.1 M FeCl3
Answer:

Option (b)

18.
The total pressure for volatile components A and B is 0.02 bar at equilibrium. If the mole fractions of component A is 0.2, then what will be partial pressure of component B ?
(a) 0.02 bar
(b) 0.04 bar
(c) 0.016 bar
(d) 0.2 bar
Answer:

Option (c)

19.
Which of the following solution is hypertonic ?
(a) 0.1 M FeCl3
(b) 0.1 M NaOH
(c) 0.1 M Urea
(d) 0.1 M Na2SO4
Answer:

Option (d)

20.
Under which of the following conditions, will a solid dissolve in water ?
(a) Lattice energy > Hydration energy
(b) Lattice energy < Hydration energy
(c) Lattice energy = Hydration energy
(d) When dissolution is exothermic.
Answer:

Option (b)

Showing 11 to 20 out of 157 Questions
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