MCQs of Solutions

Solutions MCQs

Showing 91 to 100 out of 157 Questions

91.

Calculate the osmotic pressure of 0.25 M urea solution at 27°C temp. (R = 0.082 lit.at./mole K, R = 1.987 K cal.)

(a)	0.0615 atmosphere
(b)	61.5 atmosphere
(c)	6.15 atmosphere
(d)	0.615 atmosphere

92.

Find out normality of the solution prepared by dissolving 9.8 gram H₂SO₄ to 500 ml. solution ?

(a)	4.0
(b)	0.8
(c)	0.2
(d)	0.4

93.

The elevation in boiling point of the solution prepared by dissolving 0.6 gram urea to 200 gram water is 0.50°C. What will be the molal elevation constant ?

(a)	10 K kg. mole
(b)	10 K kg. mole^-1
(c)	1.0 K kg. mole
(d)	100 K kg. mole^-1

94.

How much NaOH is required to prepare 10% w/w 500 gram solution of NaOH ?

(a)	0.5 gram
(b)	100 gram
(c)	5.0 gram
(d)	50 gram

95.

The [H₃O⁺] concentration in the 200 ml.H₂SO₄ solution is 1 M. How much H₂SO₄ is dissolved in the solution ? [H = 1, O = 16, S = 32 gram/mole]

(a)	4.9 gram
(b)	19.6 gram
(c)	9.8 gram
(d)	0.98 gram

96.

What happened when concentration of salt solution will increase ?

(a)	Boiling point increase and vapour pressure decreases.
(b)	Boiling point decrease and vapour pressure increases.
(c)	Freezing point decreases and vapour pressure increases.
(d)	Freezing point increases and vapour pressure decreases.

97.

What is the normality of 250 ml. H₂SO₄ having pH = 0.0 ?

(a)	0.50 N
(b)	0.25 N
(c)	2 N
(d)	1 N

98.

When gas is dissolve in liquid solvent and form solution, then according to Raoult's law its vapoure pressure will be _____

(a)	$\frac{P^{0} - P}{P^{0}} = \frac{n}{n + N}$
(b)	$P = K \cdot \frac{N}{n + N}$
(c)	$P = K_{H} \cdot X_{A}$
(d)	$P = P_{A} + P_{B}$

99.

Which of the following solution having same vapour pressure as 0.3 M glucose solution ?

(a)	0.1 M [Co(H₂O)₃(NO₂)₃]
(b)	0.1 M Na₂[Co(H₂O)(NO₂)₅]
(c)	0.1 M Na[Co(H₂O)₂(NO₂)₄]
(d)	0.1 M Na3[Co(NO₂)₆]

100.

What will be the normality of 0.2 M H₃PO₃ solution ?

(a)	0.1 N
(b)	0.2 N
(c)	0.6 N
(d)	0.4 N

Showing 91 to 100 out of 157 Questions