Q.1
"Relative lowering in vapour pressure of solution containing non-volatile solute is directly proportional to mole fraction of solute." Above statement is : [AFMC 2004]
  • a) Henry law
  • b)Dulong and Petit law
  • c)Raoult's law
  • d)Le-Chatelier's principle
Q.2
To prepare a solution of concentration of 0.03 g/mL of AgN03, what amount of AgN03 should be added to 60 mL of solution? [AFMC 2005]
  • a) 1.8 g
  • b)0.8 g
  • c) 0.18 g
  • d)None of these
Q.3
0.5 M of H2SO4 is diluted from 1 L to 10 L, normality of resulting solution is : [AFMC 2005]
  • a) 1N
  • b) 0.1N
  • c) 10N
  • d) 11 N
Q.4
A 5 molar solution of H2SO4 is diluted from 1 L to 10 L. What is the normality of the solution?[AFMC 2005]
  • a)0.25N
  • b) 1 N
  • c)2N
  • d)7N
Q.5
Isotonic solutions have: [AFMC 2006]
  • a)same vapour pressure
  • b)same osmotic pressure
  • c)same boiling point
  • d)same temperature
Q.6
Methanol and ethanol are miscible in water due to: [AFMC 2007]
  • a) covalent character
  • b) hydrogen bonding character
  • c)oxygen bonding character
  • d)none of the above
Q.7
Addition of common salt ro a sample of water will ...[ AFMC 1994]
  • a) increases its freezing point and increases the boiling point
  • b) decreases its freezing point and increases the boiling point
  • c) increases both the boiling point and the freezing point
  • d) decreases both the boiling and freezing point
Q.8
n aqueous solution of glucose is 10% in strength. The volume in which 1 g mole of it is dissolved will be [AFMC 2007]
  • a) 18L
  • b) 9L
  • c) 0.9L
  • d) 1.8L
Q.9
.01 mole of a non-electrolyte is dissolved in 10g of water. The molality of the solution is [ AFMC 2008]
  • a)0.1 m
  • b)0.5 m
  • c)1.0m
  • d)0.18m
Q.10
hich of the following solutions will exhibit highest boiling point? [AFMC 2008]
  • a)0.01 M Na2SO4 (aq)
  • b) 0.01 M KNO3 (aq)
  • c) 0.015 M urea (aq)
  • d) 0.015 M glucose (aq)
Q.11
n pressure cooker food is made faster because [AFMC 2009]
  • a) boiling point of water is lowered
  • b) boiling point of water is increased.
  • c)heat is concentrated on food only
  • d)heat spreads every where.
Q.12
hich of the following is a colligative property? [AFMC 2009]
  • a) Surface tension
  • b) Viscosity
  • c) Osmotic pressure
  • d) Boiling point
Q.13
Relation between partial pressure and mole fraction is stated by [AFMC 2009]
  • a)Graham's law
  • b)Raoult's law
  • c)Le-Chatelier
  • d)Avogadro law
Q.14
0.1N 50ml H2SO4 , (N/3) 30 ml HNO3, 0.5N 10ml HCl is mixed and solution is made to 1L. Then normality of resultant solution is [AFMC 2009]
  • a) N/20
  • b)N/40
  • c)N/50
  • d)N
Q.15
Vapour pressure of benzene at 30°C is 121.8mm When 15g of a non-volatile solute is dissolved in 250 g of benzene, its vapour pressure is decreased to 120.2 mm. The molecular weight of the solute is [AFMC 2009]
  • a)35.67 g
  • b)356.7 g
  • c) 432.8 g
  • d) 502.7 g
Q.16
The molal elevation constant for water is 0.What will be the boiling point of 2 molar sucrose solution at 1 atm. pressure? (Assume B.P. of pure water as 100°C) [AFMC 2011]
  • a) 101.04°C
  • b) 100.26°C
  • c) 100.52°°C
  • d) 99.74°C
Q.17
At a particular temperature, the vapour pressures of two liquids A and B are respectively 120 and 180 mm of mercury. If 2 moles of A and 3 moles of B are mixed to form an ideal solution, the vapour pressure of the solution at the same temperature will be (in mm of mercury) [AFMC 2011]
  • a)156
  • b)145
  • c)150
  • d)108
Q.18
At same temperature, which pair of the following solutions are isotonic solution? (GUJCET 2006)
  • a) 0.1M NaCl and 0.1M K2SO4
  • b)0.1M Ba(NO3)2 and 0.1M Na2SO4
  • c) 0.2M BaCl and 0.2M urea
  • d)0.1M urea and 0.1M NaCl
Q.19
Normality of 0.04M H2SO4 is … (GUJCET 2006)
  • a)0.08N
  • b)0.01N
  • c)0.04N
  • d)0.02N
Q.20
Freezing point of Urea solution is -0.6OC. How much urea is required to be dissolved in 3kg water? (Molecular wt urea=60g/mole, Kf=1.5OCkg/mole) (GUJCET 2007)
  • a) 2.4 gram
  • b) 3.6 gram
  • c) 6.0 gram
  • d) 72 gram
Q.21
Find out the osmotic pressure of 0.25M aqueous solution of urea at 27oC. ( R=0.082 lit atm / mole K, R=1.987 cal) (GUJCET 2007)
  • a)0.0615 atm
  • b)61.5 atm
  • c) 6.15 atm
  • d)0.615 atm
Q.22
Find out the normality of a solution, when 9.8 grams of H2SO4 is dissolved in 500 ml solution (GUJCET 2008)
  • a)4.0
  • b)0.8
  • c)0.2
  • d)0.4
Q.23
The increase in boiling point of solution containing 0.6 gram urea in 200gram water is 0.5oC. Find the molal elevation constant.(GUJCET 2009)
  • a) 1.0 kg/mol
  • b) 10 K kg mol
  • c)10 K g mol-1
  • d)10 K kg mol-1
Q.24
100ml of liquid A was mixed with 25ml of a liquid B to give a non-ideal solution of A-B mixture. The volume of this mixture will be.... [ Haryana CEET 1991]
  • a) 75ml
  • b) 125ml exact
  • c) fluctuating between 75ml and 125ml
  • d) close to 125 ml but not exceed 125ml
Q.25
How many grams of NaOH will be required to prepare 500grams solution containing 10% w/w NaOH solution? (GUJCET 2009)
  • a) 50 gram
  • b) 5.0 gram
  • c) 4.0 gram
  • d) 40.0 gram
Q.26
Calculate the normality of 250 ml aqueous solution of H2SO4 having pH=0.00 (GUJCET 2010)
  • a) 2N
  • b)1N
  • c)0.5N
  • d)0.25N
Q.27
How many grams of sulphuric acid is to be dissolved to prepare 200 ml aqueous solution having concentration of [H3O+] ions 1M at 25OC temperature [H=1, O=16, S=32 gram/mole](GUJCET 2011)
  • a) 4.9 gram
  • b)19.6 gram
  • c)9.8 gram
  • d)0.98 gram
Q.28
The vapour pressure of benzene at 30oC is 121.8mm. By adding 15g of non-volatile solute in 250g of Benzene, its vapour pressure is decreased to 120.2 mm. The molecular weight of solute is... [AIIMS 1997]
  • a) 156.6g
  • b) 267.4 g
  • c) 356.3g
  • d) 467.4g
Q.29
Temperature does not affect: [AIIMS 1997, 2001]
  • a) Molarity
  • b) Formality
  • c) Molality
  • d) Normality
Q.30
When common salt is dissolved in water
  • a) Boiling point of solution decreases
  • b) Melting point of solution increases
  • c) Boiling point of solution increases
  • d) Both melting point and boiling point decreases
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