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Free download in PDF Class 12 Chemistry Chapter 2 Solutions Objective Type Questions and Answers for competitive exams. These short objective type questions with answers are very important for Board exams as well as competitive exams like NEET, AIIMS, JIPMER etc. These short solved questions or quizzes are provided by Gkseries./p>
(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
(5)
Which of the following is a substitutional solid solution ?
[A]
wc
[B]
bronze
[C]
steel
[D]
monel metal
(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
(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
(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
(9)
Which of the following semipermeable membrane is best one ?
[A]
parchment paper
[B]
copper frrocyanide
[C]
butter paper
[D]
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
(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
(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
(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
(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
(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
(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
(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
(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
(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
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