Solutions  MCQs

MCQs of Solutions

Showing 21 to 30 out of 157 Questions
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21.
What is the diameter of molecular particles of homogeneous mixture ?
(a) 10-12 m
(b) 10-9 m
(c) 10-10 m
(d) 10-8 m
Answer:

Option (b)

22.
What is the ratio of molar mass to formula mass for potash alum ?
(a) 2 : 1
(b) 1 : 2
(c) 1 : 1
(d) 3 : 1
Answer:

Option (a)

23.
What is the proportion of ethanol and water in aqueous solution of 10% V/V ethanol ?
(a) 10 ml ethanol + 100 ml water
(b) 100 ml ethanol + 10 ml water
(c) 10 ml ethanol + water = 100 ml solution
(d) 10 ml water + ethanol= 100 ml solution
Answer:

Option (c)

24.
A one kg sample of hard water shows the presence of 0.01 g Ca+2 ions. What is the concentration of Ca2+ ions in ppm ?
(a) 0.01 ppm
(b) 1 ppm
(c) 10 ppm
(d) 100 ppm
Answer:

Option (c)

25.
If the mass of the solute is WB and the mass of the solvent is WA, ppm of component B is _____ .
(a) ppm=WBWA+WB×106
(b) ppm=WBWA+WB×10-6
(c) ppm=WAWA+WB×106
(d) ppm=WAWB×106
Answer:

Option (a)

26.
What is the normality of 0.04 M H2SO4 ?
(a) 0.08 N
(b) 0.01 n
(c) 0.04 N
(d) 0.02 N
Answer:

Option (a)

27.
An aqueous solution of 2.05 M CH3COOH has density equal to 1.02 g/mole. What is the molality of this solution ?
(a) 1.14 m
(b) 3.28 m
(c) 2.28 m
(d) 0.44 m
Answer:

Option (c)

28.
What will be the normality of 500 ml solution of 0.5 M Na2SO4 when diluted to 5 litre volume by addition of water ?
(a) 0.1 N
(b) 0.01 N
(c) 10 N
(d) 1 N
Answer:

Option (a)

29.
_____ will be formality of solution in which 948 grams potash alum is dissolved in 5 litre solution.

(Potash alum → K2SO4 · Al2(SO4)3 · 24H2O

Molecular weight = 948 gms/mole)

(a) 0.1 F
(b) 0.8 F
(c) 0.2 F
(d) 0.4 F
Answer:

Option (d)

30.
Which of the following aqueous solutions of gases does not follow Henry's law ?
(a) H2
(b) He
(c) NH3
(d) N2
Answer:

Option (c)

Showing 21 to 30 out of 157 Questions
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