Solutions  MCQs

MCQs of Solutions

Showing 81 to 90 out of 157 Questions
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81.
What will be the vapour pressure of the solution of 18 gram glucose dissolve in 178.2 gram water at 100°C temp. ?
(a) 706.4 mm
(b) 752.4 mm
(c) 750 mm
(d) 760 mm
Answer:

Option (b)

82.
The two solutions, 1.5% urea and 5.25% unknown substance are isotonic. The density of both the solution is 1 gram/Cm3 .What will be the molar mass of the unknown substance ?
(a) 104
(b) 210
(c) 88
(d) 120
Answer:

Option (b)

83.
The freezing point of 0.01 M KCl solution is -2°C. If BaCl2 is completely ionized, what is the freezing point of 0.01 M BaCl2 solution ?
(a) -3°C
(b) +3°C
(c) -2°C
(d) -4°C
Answer:

Option (a)

84.
The partial pressure ratio P°A : P°B for the two volatile liquid A and B and P°A : P°B = 1 : 2 and mole ratio is XA : XB = 1 : 2.What is the mole fraction of A ?
(a) 0.33
(b) 0.25
(c) 0.20
(d) 0.52
Answer:

Option (c)

85.
The vapour pressure of mixture of ethanol and propanol is 290 mm at 300 K temp. If the vapour pressure of propanol is 200 mm at 300 K temp. and the mole fraction of ethanol is 0.6, then what will be the vapour pressure of ethanol at 300 K temp. ?
(a) 350 mm
(b) 300 mm
(c) 700 mm
(d) 360 mm
Answer:

Option (a)

86.
How much H2SO4 is required to prepare 0.1 M 1 liter H2SO4 solution ? The density of 98% W/W H2SO4 is 1.80 gm/ml.
(a) 22.20 ml
(b) 5.55 ml
(c) 11.10 ml
(d) 16.65 ml
Answer:

Option (b)

87.
What is the molality of solution prepared by 0.01 mole electrolyte to 10 gram water ?
(a) 0.1 M
(b) 0.5 M
(c) 1.0 M
(d) 0.18 M
Answer:

Option (c)

88.
Which of the following is change with temperature ?
(a) Molality
(b) %W/W
(c) Formality
(d) Mole fraction
Answer:

Option (c)

89.
What is the normality of 0.04 M H2SO4
(a) 0.04 N
(b) 0.012 N
(c) 0.08 N
(d) 0.02 N
Answer:

Option (c)

90.
The freezing point of the aqueous solution of urea is -0.6°C. How much urea should be added to 3 kg water to get such solution ?(Kf = 1.5°C Kg. mol-1)
(a) 72 gram
(b) 6.0 gram
(c) 3.6 gram
(d) 2.4 gram
Answer:

Option (a)

Showing 81 to 90 out of 157 Questions
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