Class 12 Chemistry Chapter 2 Solutions MCQs | Class 12 Chemistry Chapter 2 Solutions Objective Type Questions and Answers

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Questions
1 In which condition, Henry’s law is applicable ?
A ideal behaviour of gaseous solute at high pressure and low temperature
B gaseous solute neither associate nor dissociate in solution
C gaseous solute react with solvent
D applicable in given all conditions

Answer:gaseous solute neither associate nor dissociate in solution
2 Now a days, divers uses the cylinder having gaseous mixture contains -
A 2 % O2 and 98 % He
B 11.7 % He, 56.2 % N2 and 32.1 % O2
C 11.7 % N2, 56.2% He and 32.1% O2
D 11.7 % He, 56.2 % O2 and 32.1 % N2

Answer:11.7 % He, 56.2 % N2 and 32.1 % O2
3 Due to which reason, O2 gas liberates from the blood of tissues of animal bodies
A less temperature of tissues
B partial pressure of oxygen gas is more in tissues
C partial pressure of carbon dioxide is less in tissues
D partial pressure of oxygen gas is less in tissues

Answer: partial pressure of oxygen gas is less in tissues
4 Which of the following is not a substitutional solid solution ?
A wc
B brass
C steel
D monel metal

Answer:wc
5 Which of the following is a substitutional solid solution ?
A wc
B bronze
C steel
D monel metal

Answer: wc
6 Which of the following pair of solutions forms ideal solution ?
A Chloro benzene, chloro ethane
B benzene-toluene
C acetone-chloroform
D water, HCL

Answer:benzene-toluene
7 Which of the following pair forms true solutions ?
A Hexane, heptane
B chloro benzen, bromo benzen
C chloro ethane, bromo ethane
D phenol, aniline

Answer:phenol, aniline
8 What would be the elevation in boiling point of 0.1 m NaCl solution ? (Assume that Nacl dissociates completely)
A kb/10
B 10 kb
C kb/5
D kb/20

Answer:kb/5
9 Which of the following semipermeable membrane is best one ?
A parchment paper
B copper frrocyanide
C butter paper
D cello phane

Answer: cello phane
10 At constant temperature, binary ideal solution is formed by two liquids A and B. At equilibrium, mole-fraction of liquid A is 0.7 and in vapour state mole-fraction of A is 0.4 Poa + Pob =90 mm then at the same temperature, what will be the vapour pressure of pure liquid A and B ?
A 40 mm, 50 mm
B 30 mm, 60 mm
C 50 mm, 40 mm
D 20 mm, 70 mm

Answer: 40 mm, 50 mm
11 At constant temperature, binary ideal solution is formed by two liquids A and B. At equilibrium, mole-fraction of liquid B is 0.4 and vapour state mole-fraction of B is 0.25. PoB=40 mm, then at the same temperature, what will be the vapour pressure of pure liquid ‘A’ ?
A 80 mm
B 60 mm
C 40 mm
D 50 mm

Answer: 80 mm
12 Which of the following solution is hypotonic with fluids in RBC ?(Assume that ionic solid substances completely dissociates in the solution)
A 0.2 M NaCl
B 0.1 M NaCl
C 0.18 M NaCl
D Given all

Answer: 0.1 M NaCl
13 At constant temperature, Which of the following solution is hypotonic in the comparison with fluids in RBC ? (Assume that ionic solid substances completely dissociates in the solution)
A 0.17 M NaCl
B 0.12 M NaCl
C 0.1 M NaCl
D given all

Answer: 0.17 M NaCl
14 X M NaCl is isotonic with fluids present in RBC (Red Blood Corpusceles), then what would be the value of x ? (M.w. Of NaCl =58.5 gm/mole) (Assume that ionic solid substances completely dissociates in the solution)
A 0.15
B 0.05
C 0.18
D 0.78

Answer:0.15
15 Which of the following solution is hypotonic in comparison with the solution of 0.4 M glucose?
A 0.1 M CaCl2
B 0.2 M NaCl
C 0.15 M FeCl3
D 0.3 M urea

Answer:0.15 M FeCl3
16 Which of the following solution is hypotonic in comparison with 0.15 M kCl solution ? (Assume that ionic solid substances completely dissociates in the solution)
A 0.1 M CaCl2
B 0.08 M FeCl3
C 0.2 M urea
D 0.12 BaCl2

Answer: 0.2 M urea
17 Which of the following solution is isotonic with fluid of RBC ? (For NaCl, i=2)
A 5.6% w/v glucose
B 2.8% w/v glucose
C 1.5% w/v urea
D 0.91% w/v urea

Answer:5.6% w/v glucose
18 Which of the following solution is isotonic with fluid of RBC ? (For NaCl, 2=2)
A 2.02 % w/v glucose
B 4.02% w/v glucose
C 8.0% w/v urea
D both b and c

Answer: 2.02 % w/v glucose
19 In Which of the following solution, RBC get burst ? (Molecular wt, CaCl2=111, FeCl3=162.5, glucose=180 and urea=60 gm/mole) (Assume that ionic solid completely dissociates in aqueous solution)
A 1.2% w/v urea
B 0.2 MkCl
C 0.09% M FeCl3
D 6.0% w/v glucose

Answer: 1.2% w/v urea
20 In Which of the following solution, RBC get shrinks? (Molecular wt, CaCl2=111, FeCl3=162.5, glucose=180 and urea=60 gm/mole) (Assume that ionic solid completely dissociates in aqueous solution)
A 0.1% w/v CaCl2
B 2% w/v urea
C 1.0% w/v FeCl3
D 5.0% w/v glucose

Answer: 2% w/v urea

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