FSC part 1 Chemistry Test
Chapter=Solutions
Q.1 Which of the following solutions has the highest boiling
point? 
(a) 5.85%
solution of NaCl
(b) 18.0%
solution of glucose
(c) 6.0%
solution of urea
(d) all
have same boiling point
Q.2 Two solutions of NaCl and KCl
are prepared separately by dissolving same amount of the solute in water. Which
of the following statements is true for these solutions
(a) KCl
solution will have higher boiling point than NaCl solution
(b) both
the solutions have same boiling point
(c) KCl
and NaCl solutions possess same vapour pressure
Q.3 Molarity of pure water is
(a) 1 (b) 18
(c) 55.5 (d) 6
Q.4 18 gm glucose is dissolved in
90 gm of water. The relative lowering of vapour pressure is equal to
(a) (b) 5.1
(c) (d) 6
Q.5 The molar boiling point constant is the ratio of the
elevation in boiling point to
(a) molarity (b) molality
(c) mole fraction of solvent (d) less than that of water
Q.6 An aqueous solution of methanol in water has vapour
pressure
(a) equal to
that of water (b) equation to that of methanol
(c) more than that of water (d) less than that of water
Q.7 An ozeotropic mixture of two
liquids boils at a lower temperature than either of them when
(a) it
is saturated
(b) it
shows positive deviation from Raoult’s law
(c) it
shows negative deviation from Raoult’s law
(d) it
is metastable
Q.8 In
azeotropic mixture showing positive deviation from Raoult’s law, the volume of
mixture is
(a) slightly
more than the total volume of components
(b) slightly
less than the total volume of the component
(c) equal
to the total volume of the components
(d) none
of these
Q.9 A solution of glucose is 10%. The volume in which 1 gm
mole of it is dissolved will be
(a) 1 dm3 (b) 1.8 dm3
(c) 200 cm3 (d) 900 cm3
Q.10 Colligative properties are the properties of
(a) dilute
solutions which behave as nearly ideal solutions
(b) concentrated
solutions which behave as nearly non–ideal solutions
(c) both
(i) and (ii) (d) neither (i) nor (ii)
Q.11 The freezing mixture used in ice cream machine consists
of ice and
(a) NaCl (b) CaCl2
(c) KNO3 (d) both a & c
Q.12 1 kg of sea water contains 4.96 x 10–3 gm of dissolved oxygen. The
concentration of oxygen in sea water in ppm is
(a) 4.96 x 10–2 (b) 0.496
(c) 4.96 (d) 49.6
Q.13 A solution of sucrose is 34.2%. The volume of solution
containing one mole of solute
(a) 500 cm3 (b) 1000 cm3
(c) 342 cm3 (d) 3420 cm3
Q.14 Salt of a weak acid with strong base when dissolved in
water gives
(a) acidic solution (b) basic solution
(c) neutral solution (d) none
Q.15 Mole fraction of 10% urea is
(a) 0.042 (b) 0.023
(c) 0.032 (d) 0.072
Q.16 Which of the following mixtures of liquids show
negative deviation
(a) ethyl alcohol ether (b) HCl and water
(c) phenol
– water
(d) chlorobenzene
– bromobenzene
Q.17 The term cryoscopy is used
(a) depression
of freezing point (b) elevation in boiling point
(c) lowering
of vapour pressure
(d) osmotic
pressure
Q.18 The term ebullioscopy is used
(a) depression
of freezing point
(b) elevation
in boiling point
(c) lower
of vapour pressure
(d) none
of above
Q.19 Azeotropic mixture
(a) obey
Henry’s law
(b) obey
Raoult’s law
(c) do
not obey Raoult’s law
(d) obey
Dalton’s law
Q.20 Hydrolysis of potassium acetate produce
(a) acidic solution (b) neutral solution
(c) basic solution (d) none of these
Q.21 Which one of the following salts will not hydrolyse
(a) NaCl (b) AlCl3
(c) Na2CO3 (d) CH3COONa
Q.22 The sum of mole fractions (X) of components of a
solution is equal to
(a) 100 (b) 200
(c) one (d) zero
Q.23 Which pair of mixture is called idea solution
(a) nicotine–water
(b) chlorobenzene
& bromobenzene
(c) water–ether
(d) water–alcohol
Q.24 The vapour pressure of aqueous solution of sugar
solution is
(a) equal
to vapour pressure of water
(b) more
than vapour pressure of pure water
(c) less
than vapour pressure of pure water
(d) none
of above
Q.25 When
NaCl is dissolved in water
(a) melting
point decrease
(b) boiling
point decrease
(c) both
melting and boiling point decrease
(d) none
of above
Q.26 The solution which distils without change in
composition is called
(a) unsaturated solution (b) saturated solution
(c) zeotropic mixture (d) azeotropic mixture
Q.27 Solubility curve of Na2SO4 10 . H2O shows
(a) constant
increase of solubility
(b) constant
decrease of solubility
(c) discontinuous
solubility with temp
(d) none
of above
Q.28 Use of glycol as antifreeze in the automobile is an
important application of
(a) colligative
property
(b) Roault’s
law
(c) fractional
crystallization
(d) hydrolysis
Q.29 Use of NaCl in ice cream making is an important
application of
(a) constitutive
property
(b) additive
property
(c) colligative
property
(d) Roault’s
law
Q.30 Which one of the following solutions will have higher
vapour pressure than that of water
(a) aqueous
solution of CH3OH
(b) aqueous
solution of H2SO4
(c) aqueous
solution of sugar
(d) aqueous
solution of urea
Q.31 Ethylene glycol is mixed with water as anti freeze in
radiator because
(a) it
has low vapour pressure
(b) it
raises the boiling point of water
(c) it
lowers the freezing point of water
(d) it
changes osmotic pressure
(e) it
has all characters
Q.32 Which one of following is not soluble in alcohol
(a) KCl (b) urea
(c) acetone (d) ether
Q.33 Mixture of alcohol and water can be separated by
(a) solvent extraction (b) crystallization
(c) filtration (d) fractional distillation
Q.34 Which one of following is not a conjugate solution
(a) ether + water (b) phenol + water
(c) nicotine + water (d) ethanol + water
Q.35 Which one of the following has discontinuous solubility
curve
(a) NaCl (b) KCl
(c) NaNO3 (d) CaCl2 . 6H2O
Q.36 Which one of following has continuous solubility curve
(a) NaCl (b) NaNO3
(c) Na2SO4 . 10H2O (d) both a and b
Q.37 Solubility of following decrease with increase in temp
(a)
Ce2(SO4)3 (b) CaCl2 . 6H2O
(c) Pb(NO3)2 (d) K2Cr2O7
Q.38 According to Roault’s law
(a) relative
lowering of V.P. is equal to mole fraction of solute
(b) the
lowering of V.P. is directly proportional to the mole fraction of solute (c)
V.P. of a solvent above a solution is equal to product of V.P. of pure solvent
and mole fraction of solvent in solution
(d) all the above
Q.39 The
solution of KCl (a) acidic (b) basic
(c) neutral (d) none of above
Q.40 Na2SO4 solution is
(a) acidic (b) basic
(c) neutral (d) none of above
Q.41 The solution of CuSO4 is
(a) acidic (b) basic
(c) neutral (d) none of above
Q.42 The
solution of AlCl3 is (a) acidic (b) basic
(c) neutral (d) none of above
Q.43 The solution of CH3COONa
(a) acidic (b) basic
(c) neutral (d) none of above
Q.44 The no. of water of crystallization of MgCl2
(a) 12 (b) 6
(c) 3 (d) 4
Q.45 The no. of water of crystallization of MgSO4
(a) 12 (b) 7
(c) 5 (d) 3
Q.46 Freezing point depression is measured by
(a) Beckmann’s
apparatus
(b) Land’s
Berger’s
(c) Antifreeze
apparatus
(d) all
the above
Q.47 Elevation of boiling is measured by
(a) Beckmann’s
apparatus
(b) Lands
berger’s method
(c) Antifreeze
apparatus
(d) none
of above
Q.48 Colligative properties are the properties of solution
that depends upon
(a) nature of molecules (b) quality
(c) physical property (d) no. of molecules
Q.49 Aqueous solution of glucose boils at 100.52oC. The
solution contains
(a) 180
gm glucose in 1 litre water
(b) 90
gm glucose in 1 litre water
(c) 18
gm glucose in 1 litre water
(d) 3.6
gm glucose in 1 litre water
Q.50 Aqueous solution of methanol is zeotropic mixture
because
(a) it
does not obey the Roalt’s law
(b) mixture
cannot be separated by sublimate
(c) mixture
can be separated by distillation
greater volume than the volume of component
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