JEE Main & Advanced Chemistry Solutions / विलयन Question Bank

done Osmosis and Osmotic pressure of the solution Total Questions - 61

• 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
  View Solution play_arrow

• 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
  View Solution play_arrow

• 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
  View Solution play_arrow

• 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

• 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
  View Solution play_arrow

• 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
  View Solution play_arrow

• 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
  View Solution play_arrow

• 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
  View Solution play_arrow

• 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
  View Solution play_arrow

• 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
  View Solution play_arrow

• 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
  View Solution play_arrow

• 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
  View Solution play_arrow

• 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
  View Solution play_arrow

• 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
  View Solution play_arrow

• 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
  View Solution play_arrow

• 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
  View Solution play_arrow

• 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
  View Solution play_arrow

• 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
  View Solution play_arrow

• 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
  View Solution play_arrow

• 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

• 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

• 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
  View Solution play_arrow

• 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

• 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

• 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

• 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
  View Solution play_arrow

• 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

• 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
  View Solution play_arrow

• 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
  View Solution play_arrow

• 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
  View Solution play_arrow

• 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
  View Solution play_arrow

• 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

• 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
  View Solution play_arrow

• 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

• 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
  View Solution play_arrow

• 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
  View Solution play_arrow

• 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

• 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

• 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

• 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

• 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

• 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

• 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
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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
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