-
question_answer1)
If 3 gm of glucose (mol. wt. 180) is dissolved in 60 gm of water at \[{{15}^{o}}C\]. Then the osmotic pressure of this solution will be [MP PMT 1986]
A)
0.34 atm done
clear
B)
0.65 atm done
clear
C)
6.57 atm done
clear
D)
5.57 atm done
clear
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question_answer2)
The concentration in gms per litre of a solution of cane sugar \[(M=342)\] which is isotonic with a solution containing \[6\,gms\] of urea \[(M=60)\] per litre is [Orissa PMT 1989]
A)
3.42 done
clear
B)
34.2 done
clear
C)
5.7 done
clear
D)
19 done
clear
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question_answer3)
Osmotic pressure is 0.0821 atm at temperature of \[300\,K\]. Find concentration in mole/litre [Roorkee 1990]
A)
0.033 done
clear
B)
0.066 done
clear
C)
\[0.33\times {{10}^{-2}}\] done
clear
D)
3 done
clear
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question_answer4)
Osmotic pressure of a solution containing 0.1 mole of solute per litre at \[273K\] is (in atm) [CPMT 1988]
A)
\[\frac{0.1}{1}\times 0.08205\times 273\] done
clear
B)
\[0.1\times 1\times 0.08205\times 273\] done
clear
C)
\[\frac{1}{0.1}\times 0.08205\times 273\] done
clear
D)
\[\frac{0.1}{1}\times \frac{273}{0.08205}\] done
clear
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question_answer5)
A solution contains non-volatile solute of molecular mass \[{{M}_{p}}\]. Which of the following can be used to calculate molecular mass of the solute in terms of osmotic pressure (m = Mass of solute, V = Volume of solution and p = Osmotic pressure) [CBSE PMT 2002]
A)
\[Mp=\left( \frac{m}{\pi } \right)\,VRT\]\[\] done
clear
B)
\[Mp=\left( \frac{m}{V} \right)\frac{RT}{\pi }\] done
clear
C)
\[Mp=\left( \frac{m}{V} \right)\frac{\pi }{RT}\] done
clear
D)
\[Mp=\left( \frac{m}{V} \right)\,\pi RT\] done
clear
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question_answer6)
The osmotic pressure of a 5% (wt/vol) solution of cane sugar at \[{{150}^{o}}C\] is [AMU 1999]
A)
2.45 atm done
clear
B)
5.078 atm done
clear
C)
3.4 atm done
clear
D)
4 atm done
clear
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question_answer7)
The relationship between osmotic pressure at \[273\,K\] when \[10g\] glucose \[({{P}_{1}}),\,10g\] urea \[({{P}_{2}})\] and \[10g\] sucrose \[({{P}_{3}})\] are dissolved in \[250ml\] of water is [CBSE PMT 1996]
A)
\[{{P}_{1}}>{{P}_{2}}>{{P}_{3}}\] done
clear
B)
\[{{P}_{3}}>{{P}_{1}}>{{P}_{2}}\] done
clear
C)
\[{{P}_{2}}>{{P}_{1}}>{{P}_{3}}\] done
clear
D)
\[{{P}_{2}}>{{P}_{3}}>{{P}_{1}}\] done
clear
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question_answer8)
In osmosis [DPMT 1985]
A)
Solvent molecules move from higher concentration to lower concentration done
clear
B)
Solvent molecules move from lower to higher concentration done
clear
C)
Solute molecules move from higher to lower concentration done
clear
D)
Solute molecules move from lower to higher concentration done
clear
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question_answer9)
Semipermeable membrane is that which permits the passage of [BHU 1979; CPMT 1977, 84, 90; MP PMT 1994]
A)
Solute molecules only done
clear
B)
Solvent molecules only done
clear
C)
Solute and solvent molecules both done
clear
D)
Neither solute nor solvent molecules done
clear
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question_answer10)
Two solutions A and B are separated by semi- permeable membrane. If liquid flows form A to B then [MH CET 2000]
A)
A is less concentrated than B done
clear
B)
A is more concentrated than B done
clear
C)
Both have same concentration done
clear
D)
None of these done
clear
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question_answer11)
A 5% solution of canesugar (mol. wt. =342) is isotonic with 1% solution of a substance \[X\]. The molecular weight of \[X\] is [CBSE PMT 1998]
A)
34.2 done
clear
B)
171.2 done
clear
C)
68.4 done
clear
D)
136.8 done
clear
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question_answer12)
Which of the following colligative properties can provide molar mass of proteins (or polymers or colloids) with greater precision [Kerala PMT 2004]
A)
Relative lowering of vapour pressure done
clear
B)
Elevation of boiling point done
clear
C)
Depression in freezing point done
clear
D)
Osmotic pressure done
clear
E)
Rast's method done
clear
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question_answer13)
The average osmotic pressure of human blood is 7.8 bar at \[{{37}^{o}}C\]. What is the concentration of an aqueous \[NaCl\] solution that could be used in the blood stream [AIIMS 2004]
A)
\[0.16\,\,mol/L\] done
clear
B)
\[0.32\,\,mol/L\] done
clear
C)
\[0.60\,\,mol/L\] done
clear
D)
\[0.45\,\,mol/L\] done
clear
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question_answer14)
A solution of sucrose(molar mass = 342 g/mol) is prepared by dissolving 68.4 g of it per litre of the solution, what is its osmotic pressure (R = 0.082 lit. atm.\[{{k}^{-1}}\]\[mo{{l}^{-1}}\]) at 273k [UPSEAT 2001]
A)
6.02 atm done
clear
B)
4.92 atm done
clear
C)
4.04 atm done
clear
D)
5.32 atm done
clear
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question_answer15)
Blood has been found to be isotonic with [CPMT 1994]
A)
Normal saline solution done
clear
B)
Saturated \[NaCl\]solution done
clear
C)
Saturated \[KCl\] solution done
clear
D)
Saturated solution of a 1 : 1 mixture of \[NaCl\] and \[KCl\] done
clear
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question_answer16)
If 20 g of a solute was dissolved in 500 ml of water and osmotic pressure of the solution was found to be 600 mm of Hg at \[{{15}^{o}}C,\] then molecular weight of the solute is [BHU 2004]
A)
1000 done
clear
B)
1200 done
clear
C)
1400 done
clear
D)
1800 done
clear
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question_answer17)
The osmotic pressure of 0.4% urea solution is 1.66 atm and. that of a solution of suger of 3.42 % is 2.46 atm. When both the solution are mixed then the osmotic pressure of the resultant solution will be [MP PMT 1985]
A)
1.64 atm done
clear
B)
2.46 atm done
clear
C)
2.06 atm done
clear
D)
0.82 atm done
clear
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question_answer18)
Blood is isotonic with [DCE 2000]
A)
0.16 M \[NaCl\] done
clear
B)
Conc. \[NaCl\] done
clear
C)
50 % \[NaCl\] done
clear
D)
30 % \[NaCl\] done
clear
View Solution play_arrow
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question_answer19)
Which inorganic precipitate acts as semipermeable membrane or The chemical composition of semipermeable membrane is [CPMT 1984, 90; MP PMT 1985, 86]
A)
Calcium sulphate done
clear
B)
Barium oxalate done
clear
C)
Nickel phosphate done
clear
D)
Copper ferrocyanide done
clear
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question_answer20)
The osmotic pressure of \[1\,m\] solution at \[{{27}^{o}}C\] is [CPMT 1999]
A)
2.46 atm done
clear
B)
24.6 atm done
clear
C)
1.21 atm done
clear
D)
12.1 atm done
clear
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question_answer21)
Osmotic pressure of a solution can be measured quickly and accurately by [JIPMER 1991; CPMT 1983]
A)
Berkeley and Hartley's method done
clear
B)
Morse's method done
clear
C)
Pfeffer's method done
clear
D)
De Vries method done
clear
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question_answer22)
The solution in which the blood cells retain their normal form are with regard to the blood [CBSE PMT 1991]
A)
Isotonic done
clear
B)
Isomotic done
clear
C)
Hypertonic done
clear
D)
Equinormal done
clear
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question_answer23)
The osmotic pressure of a solution is given by the relation [CPMT 1983, 84, 87, 93, 94]
A)
\[P=\frac{RT}{C}\] done
clear
B)
\[P=\frac{CT}{R}\] done
clear
C)
\[P=\frac{RC}{T}\] done
clear
D)
\[\frac{P}{C}=RT\] done
clear
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question_answer24)
The osmotic pressure of a solution is directly proportional to
A)
The molecular concentration of solute done
clear
B)
The absolute temperature at a given concentration done
clear
C)
The lowering of vapour pressure done
clear
D)
All of the above done
clear
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question_answer25)
What would happen if a thin slice of sugar beet is placed in a concentrated solution of \[NaCl\] [CMC Vellore 1986]
A)
Sugar beet will lose water from its cells done
clear
B)
Sugar beet will absorb water from solution done
clear
C)
Sugar beet will neither absorb nor lose water done
clear
D)
Sugar beet will dissolve in solution done
clear
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question_answer26)
The osmotic pressure of a dilute solution is given by [MP PMT 1987]
A)
\[P={{P}_{o}}x\] done
clear
B)
\[\pi V=nRT\] done
clear
C)
\[\Delta P={{P}_{o}}{{N}_{2}}\] done
clear
D)
\[\frac{\Delta P}{{{P}_{o}}}=\frac{{{P}_{o}}-P}{{{P}_{o}}}\] done
clear
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question_answer27)
Which statement is wrong regarding osmotic pressure (P), volume (V) and temperature (T) [MP PMT 1985]
A)
\[P\propto \frac{1}{V}\] if \[T\] is constant done
clear
B)
\[P\propto T\] if \[V\] is constant done
clear
C)
\[P\propto V\] if \[T\] is constant done
clear
D)
\[PV\]is constant if \[T\] is constant done
clear
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question_answer28)
Isotonic solutions have [DPMT 1984; MP PMT 1986]
A)
Equal temperature done
clear
B)
Equal osmotic pressure done
clear
C)
Equal volume done
clear
D)
Equal amount of solute done
clear
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question_answer29)
Which of the following associated with isotonic solutions is not correct [AMU 2002]
A)
They will have the same osmotic pressure done
clear
B)
They have the same weight concentrations done
clear
C)
Osmosis does not take place when the two solutions are separated by a semipermeable membrane done
clear
D)
They will have the same vapour pressure done
clear
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question_answer30)
Isotonic solution have the same [EAMCET 1979; JIPMER 1991, 2002; AFMC 1995; MP PMT 2002]
A)
Density done
clear
B)
Molar concentration done
clear
C)
Normality done
clear
D)
None of these done
clear
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question_answer31)
A 0.6% solution of urea (molecular weight = 60) would be isotonic with [NCERT 1982; DCE 2002]
A)
\[0.1M\] glucose done
clear
B)
\[0.1M\,KCl\] done
clear
C)
0.6% glucose solution done
clear
D)
\[0.6%\,\,KCl\] solution done
clear
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question_answer32)
The value of osmotic pressure of a 0.2 M aqueous solution at 293K is [AMU 2002]
A)
8.4 atm done
clear
B)
0.48atm done
clear
C)
4.8 atm done
clear
D)
4.0 atm done
clear
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question_answer33)
Diffusion of solvent through a semi permeable membrane is called [AFMC 2003]
A)
Diffusion done
clear
B)
Osmosis done
clear
C)
Active absorption done
clear
D)
Plasmolysis done
clear
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question_answer34)
Solutions having the same osmotic pressure under a given set of conditions are known as [BHU 1979; EAMCET 1979; CPMT 1990; MP PMT 1999; AFMC 1999, 2001]
A)
Hypertonic done
clear
B)
Hypotonic done
clear
C)
Normal done
clear
D)
Isotonic done
clear
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question_answer35)
At low concentrations, the statement that equimolal solutions under a given set of experimental conditions have equal osmotic pressure is true for [EAMCET 1979; BHU 1979]
A)
All solutions done
clear
B)
Solutions of non-electrolytes only done
clear
C)
Solutions of electrolytes only done
clear
D)
None of these done
clear
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question_answer36)
Which one of the following would lose weight on exposure to atmosphere [NCERT 1975]
A)
Concentrated \[{{H}_{2}}S{{O}_{4}}\] done
clear
B)
Solid \[NaOH\] done
clear
C)
A saturated solution of \[C{{O}_{2}}\] done
clear
D)
Anhydrous sodium carbonate done
clear
View Solution play_arrow
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question_answer37)
The molecular weight of \[NaCl\] determined by osmotic pressure method will be
A)
Same as theoritical value done
clear
B)
Higher than theoritical value done
clear
C)
Lower than theoritical value done
clear
D)
None of these done
clear
View Solution play_arrow
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question_answer38)
The osmotic pressure of solution increases, if [CPMT 1985, 87, 91]
A)
Temperature is decreased done
clear
B)
Solution concentration is increased done
clear
C)
Number of solute molecules is increased done
clear
D)
Volume is increased done
clear
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question_answer39)
At the same temperature, following solution will be isotonic [MP PMT 1985]
A)
3.24 gm of sucrose per litre of water and 0.18 gm glucose per litre of water done
clear
B)
3.42 gm of sucrose per litre and 0.18 gm glucose in 0.1 litre water done
clear
C)
3.24 gm of sucrose per litre of water and 0.585 gm of sodium chloride per litre of water done
clear
D)
3.42 gm of sucrose per litre of water and 1.17 gm of sodium chloride per litre of water done
clear
View Solution play_arrow
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question_answer40)
The osmotic pressure of a decinormal solution of \[BaC{{l}_{2}}\] in water is
A)
Inversely proportional to its celsius temperature done
clear
B)
Inversely proportional to its absolute temperature done
clear
C)
Directly proportional to its celsius temperature done
clear
D)
Directly proportional to its absolute temperature done
clear
View Solution play_arrow
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question_answer41)
Blood cells will remain as such in [CPMT 2004]
A)
Hypertonic solution done
clear
B)
Hypotonic solution done
clear
C)
Isotonic solution done
clear
D)
None of these done
clear
View Solution play_arrow
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question_answer42)
The osmotic pressure of a dilute solution is directly proportional to the [MP PMT 1987]
A)
Diffusion rate of the solute done
clear
B)
Ionic concentration done
clear
C)
Elevation of B.P. done
clear
D)
Flow of solvent from a concentrated to a dilute solution done
clear
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question_answer43)
The osmotic pressure in atmospheres of 10% solution of canesugar at \[{{69}^{o}}C\] is [AFMC 1991]
A)
724 done
clear
B)
824 done
clear
C)
8.21 done
clear
D)
7.21 done
clear
View Solution play_arrow
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question_answer44)
Which of the following molecules would diffuse through a cell membrane [NCERT 1978]
A)
Fructose done
clear
B)
Glycogen done
clear
C)
Haemoglobin done
clear
D)
Catalase done
clear
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question_answer45)
Two solutions of \[KN{{O}_{3}}\] and \[C{{H}_{3}}COOH\] are prepared separately. Molarity of both is \[0.1\,M\] and osmotic pressures are \[{{P}_{1}}\] and \[{{P}_{2}}\] respectively. The correct relationship between the osmotic pressures is [CPMT 1983, 84; Pb CET 2004]
A)
\[{{P}_{2}}>{{P}_{1}}\] done
clear
B)
\[{{P}_{1}}={{P}_{2}}\] done
clear
C)
\[{{P}_{1}}>{{P}_{2}}\] done
clear
D)
\[\frac{{{P}_{1}}}{{{P}_{1}}+{{P}_{2}}}=\frac{{{P}_{2}}}{{{P}_{1}}+{{P}_{2}}}\] done
clear
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question_answer46)
The osmotic pressure of a dilute solution of a non-volatile solute is [JIPMER 1999]
A)
Directly proportional to its temperature on the centigrade scale done
clear
B)
Inversely proportional to its temperature on the Kelvin scale done
clear
C)
Directly proportional to its temperature on the Kelvin scale done
clear
D)
Inversely proportional to its temperature on the centigrade scale done
clear
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question_answer47)
Osmotic pressure of a urea solution at \[{{10}^{o}}C\] is \[500\,\,mm.\] Osmotic pressure of the solution become 105.3 mm. When it is diluted and temperature raised to \[{{25}^{o}}C.\] The extent of dilution is [MP PET 2004]
A)
6 Times done
clear
B)
5 Times done
clear
C)
7 Times done
clear
D)
4 Times done
clear
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question_answer48)
If a \[0.1M\] solution of glucose (mol. wt. 180) and \[0.1\,\text{molar}\] solution of urea (mol. wt. 60) are placed on the two sides of a semipermeable membrane to equal heights, then it will be correct to say [CBSE PMT 1992]
A)
There will be no net movement across the membrane done
clear
B)
Glucose will flow across the membrane into urea solution done
clear
C)
Urea will flow across the membrane into glucose solution done
clear
D)
Water will flow from urea solution into glucose solution done
clear
View Solution play_arrow
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question_answer49)
At constant temperature, the osmotic pressure of a solution [CPMT 1986]
A)
Directly proportional to the concentration done
clear
B)
Inversely proportional to the concentration done
clear
C)
Directly proportional to the square of the concentration done
clear
D)
Directly proportional to the square root of the concentration done
clear
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question_answer50)
The solution containing \[4.0gm\] of a polyvinyl chloride polymer in 1 litre of dioxane was found to have an osmotic pressure \[6.0\times {{10}^{-4}}\] atmosphere at\[300K\], the value of R used is 0.082 litre atmosphere\[mol{{e}^{-1}}{{k}^{-1}}\]. The molecular mass of the polymer was found to be [NCERT 1978]
A)
\[3.0\times {{10}^{2}}\] done
clear
B)
\[1.6\times {{10}^{5}}\] done
clear
C)
\[5.6\times {{10}^{4}}\] done
clear
D)
\[6.4\times {{10}^{2}}\] done
clear
View Solution play_arrow
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question_answer51)
Solvent molecules pass through the semipermeable membrane is called [CPMT 1983; MP PMT 1987; RPET 2000; DCE 2004]
A)
Electrolysis done
clear
B)
Electrophoresis done
clear
C)
Cataphoresis done
clear
D)
Osmosis done
clear
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question_answer52)
If molecular weight of compound is increased then sensitivity is decreased in which of the following methods [DCE 2001]
A)
Elevation in boiling point done
clear
B)
Viscosity done
clear
C)
Osmosis done
clear
D)
Dialysis done
clear
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question_answer53)
If solubility of \[NaCl\] at \[{{20}^{o}}C\] is 35 \[gm\] per 100 gm of water. Then on adding 50 gm of \[NaCl\] to the same volume at same temperature the salt remains undissolved is
A)
15 gm done
clear
B)
20 gm done
clear
C)
50 gm done
clear
D)
35 gm done
clear
View Solution play_arrow
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question_answer54)
Which of the following associated with isotonic solution is not correct
A)
They will have the same osmotic pressure done
clear
B)
They have the same weight concentration done
clear
C)
Osmosis does not take place when the two solutions are separated by a semipermeable membrane done
clear
D)
They will have the same vapour pressure done
clear
View Solution play_arrow
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question_answer55)
If osmotic pressure of a solution is \[2\,atm\] at \[273K\], then at \[546K\], the osmotic pressure is
A)
0.5 atm done
clear
B)
1 atm done
clear
C)
2 atm done
clear
D)
4 atm done
clear
View Solution play_arrow
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question_answer56)
In osmosis reaction, the volume of solution
A)
Decreases slowly done
clear
B)
Increases slowly done
clear
C)
Suddenly increases done
clear
D)
No change done
clear
View Solution play_arrow
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question_answer57)
As a result of osmosis the volume of solution [JIPMER 2000]
A)
Increases done
clear
B)
Decreases done
clear
C)
Remains constant done
clear
D)
Increases or decreases done
clear
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question_answer58)
A solution of urea contain 8.6 gm/litre (mol. wt. 60.0). It is isotonic with a 5% solution of a non-volatile solute. The molecular weight of the solute will be [MP PMT 1986]
A)
348.9 done
clear
B)
34.89 done
clear
C)
3489 done
clear
D)
861.2 done
clear
View Solution play_arrow
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question_answer59)
One mole each of urea, glucose and sodium chloride were dissolved in one litre of water Equal osmotic pressure will be produced by solutions of [MH CET 1999]
A)
Glucose and sodium chloride done
clear
B)
Urea and glucose done
clear
C)
Sodium chloride and urea done
clear
D)
None of these done
clear
View Solution play_arrow
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question_answer60)
Which of the following aqueous solutions produce the same osmotic pressure [Roorkee 1999]
A)
0.1 M NaCl solution done
clear
B)
0.1 M glucose solution done
clear
C)
0.6 g urea in 100 ml solution done
clear
D)
1.0 g of a non-electrolyte solute (X) in 50 ml solution (Molar mass of X = 200) done
clear
View Solution play_arrow
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question_answer61)
Which of the following aqueous solutions are isotonic \[(R=0.082\] atm \[{{K}^{-1}}mo{{l}^{-1}})\] [Roorkee Qualifying 1998]
A)
\[0.01\,M\] glucose done
clear
B)
\[0.01\,M\,NaN{{O}_{3}}\] done
clear
C)
\[500\,ml\] solution containing \[0.3\,g\] urea done
clear
D)
\[0.04\,N\,HCl\] done
clear
View Solution play_arrow