# IIT JEE/IIT JEE Solutions Mcq Questions part 2 Sample Test,Sample questions

## Question: `0.1 M solution of glucose and 0.1 M solute of urea are placed on two sides of semipermeable membrane to equal heights. Which of the following is correct? `

1.There will be flow of water from glucose side to urea.

2.There will be flow of water from urea side to glucose.

3.There will be no net flow across the membrane.

4.Glucose solution will move into urea solution.

Posted Date:-2021-09-30 18:15:10

## Question: `18% (W/V) solution of urea (Mol. Mass = 60) is `

1.1 M

2.2 M

3.0.3 M

4.3 M.

Posted Date:-2021-09-30 18:15:10

## Question: `3% solution of glucose is isotonic with 1% solution of a non-volatile non-electrolyte substance. The molecular mass of the substance would be `

1.180

2.360

3.420

4.60

Posted Date:-2021-09-30 18:15:10

## Question: `34.2 gm of sugar (mol. wt. 342) is dissolved in 90 gm of water at the boiling point of water vapour pressure of solution at that very temperature will be `

1.720 mm Hg

2.345.1 mm Hg

3.765.1 mm Hg

4.745.1 mm Hg

Posted Date:-2021-09-30 18:15:10

## Question: `4 L of 0.2 M aqueous solution of KOH is mixed with 2 L of 0.5 M aqueous solution of KOH. The molarity of the resulting solution is `

1.0.7 M

2.0.3 M

3.0.2 M

4.1.8 M.

Posted Date:-2021-09-30 18:15:10

## Question: `45% solution of glucose would be isotonic with respect to ?? solution of urea 9%`

1.4.50%

2.13.50%

3.1.50%

4.9%.

Posted Date:-2021-09-30 18:15:10

## Question: `5.85 g of NaCl is dissolved in 500 ml of water. The molarity is `

1.0.1

2.0.2

3.0.3

4.0.4.

Posted Date:-2021-09-30 18:15:10

## Question: `?Partial vapour pressure of a solution component is directly proportional to its mole fraction?. This statement is known as `

1.Henrys law

2.Raoults law

3.Distribution law

4.Ostwalds dilution law.

Posted Date:-2021-09-30 18:15:10

## Question: `A 500 g tooth paste sample has 02 g fluoride concentration What is the concentration of fluoride in terms of ppm `

1.250

2.200

3.400

4.1000

Posted Date:-2021-09-30 18:15:10

## Question: `A colligative property depends upon `

1.number of particles in solution

2.number of molecules in solution

3.number of ions of solute

4.None of the above

Posted Date:-2021-09-30 18:15:10

## Question: `A colligative property is `

1.electrical conductivity

2.conductivity

3.osmotic pressure

4.molecular pressure

Posted Date:-2021-09-30 18:15:10

## Question: `A crystal of blue vitriol is placed in its saturated solution. Which of the following observations would you expect to make provided the temperature is constant? A super ? saturated solution will be formed `

1.A super ? saturated solution will be formed

2.The crystals will be dissolved

3.No change will occur

4.Crystals will separate out

Posted Date:-2021-09-30 18:15:10

## Question: `A liquid is in equilibrium with its vapour at its boiling point. On the average the molecules of the two phases will have `

1.same magnitude of Interparticle forces

2.same potential energy

3.same total energy

4.same free energy.

Posted Date:-2021-09-30 18:15:10

## Question: `A non-volatile electrolyte dissolved in an aqueous solution in same molal proportion as non-electrolyte produces `

1.same colligative effect

2.higher colligative effect

3.lower colligative effect

4.no colligative effect.

Posted Date:-2021-09-30 18:15:10

## Question: `A non-volatile electrolyte dissolved in equimolal proportion as non-volatile non-electrolyte produces `

1.same colligative effect

2.lower colligative effect

3.higher colligative effect

4.no colligative effect.

Posted Date:-2021-09-30 18:15:10

## Question: `A solution containing one gram of substance in 100 ml of water is found to be isotonic with a solution of 3 grams of glucose in 100 ml of water. The molecular mass of the substance is `

1.110

2.54

3.60

4.45

Posted Date:-2021-09-30 18:15:10

## Question: `A supersaturated solution is a metastable solution whose solute concentration `

1.continuously changes

2.exceeds the solubility

3.is less than the solubility

4.is equal to the solubility of that substance in water

Posted Date:-2021-09-30 18:15:10

## Question: `According to Raoults law the relative lowering of vapour pressure of a solution of non-volatile solute is equal to mole fraction of solvent `

1.equal to mole fraction of solvent

2.equal to mole fraction of solute

3.directly proportional to mole fraction of solute

4.equal to normality of the solution.

Posted Date:-2021-09-30 18:15:10

## Question: `According to Raoults law for solution containing non-volatile solution the relative lowering of vapour pressure for solution is `

1.inversely proportional to mole fraction of the solute

2.directly proportional to mole fraction of solute

3.equal to mole fraction of solute

4.equal to mole fraction of solvent

Posted Date:-2021-09-30 18:15:10

## Question: `Acetic acid exists as dimers in benzene if on dissolving 1.65 gm of acetic acid in 100 gm of benzene the Vant Hoff factor i comes out to be 0.508 then extent of association of acetic acid in benzene is `

1.205%

2.95%

3.98.30%

4.20%

Posted Date:-2021-09-30 18:15:10

## Question: `An aqueous solution containing 6 g of urea in 500 ml of solution has a density equal to 1.052. If the molecular mass of urea is 60 then the molality of solution is `

1.0.192

2.0.96

3.0.2

4.2

Posted Date:-2021-09-30 18:15:10

## Question: `An aqueous solution of glucose is 10% in strength. The volume in which 1 gm mole of it is dissolved will be `

1.18 L

2.9 L

3.0.9 L

4.1.8 L.

Posted Date:-2021-09-30 18:15:10

## Question: `An azeotropic solution of two liquids has boiling point lower than ether when it `

1.shows no deviation from Raoults law

2.shows a positive deviation from Raoults law

3.is saturated.

4.None of them

Posted Date:-2021-09-30 18:15:10

## Question: `At 298 K the vapour pressure of pure X is 50 mm Hg and that of pure Y is 60 mm Hg. If 1 mole of X and 1 mole of Y are mixed than vapour pressure of the solution was found out to be 57.5 mm Hg. The solution `

1.shows negative deviation

2.shows positive deviation

3.forms a constant boiling

4.behaves ideally

Posted Date:-2021-09-30 18:15:10

## Question: `Certain substance trimerises when dissolved in a solvent A. The vant Hoffs factor i for the solutions is `

1.1

2.3-Jan

3.3

4.unpredictable

Posted Date:-2021-09-30 18:15:10

## Question: `During molecular weight determination of non-volatile solute by cryoscopic method Beckmann Thermometer is used to determine the `

1.depression in freezing point or elevation in boiling point

2.exact freezing point of the solution

3.exact boiling point of the solution

4.lowering in vapour pressure

Posted Date:-2021-09-30 18:15:10

## Question: `Ebullioscopic constant depends upon `

1.nature of solvent

2.nature of solute

3.conditions of temperature and pressure

4.all the above factors.

Posted Date:-2021-09-30 18:15:10

## Question: `For a solution containing non-volatile solute the relative lowering of vapour pressure is 02 If the solution contains 5 moles in all which of the following are true?I Mole fraction of solute in the solution is02II No of moles of solute in the solution is 02III No of moles of solvent in the solution is 4IV Mole fraction of solvent is02 `

1.I IV

2.II III

3.I III

4.II IV.

Posted Date:-2021-09-30 18:15:10

## Question: `For dilute solutions Raoults law states that `

1.the relative lowering in vapour pressure is equal to the mole fraction of the solute

2.the relative lowering in vapour pressure is equal to the amount of solvent in the solution

3.the vapour pressure of the solution is proportional to that of the solvent

4.lowering of vapour pressure is equal to the mole fraction of the solution

Posted Date:-2021-09-30 18:15:10

## Question: `For which of the following solutes i is greater than 1? `

1.Urea

2.Sucrose

3.Sodium chloride

4.glucose.

Posted Date:-2021-09-30 18:15:10

## Question: `Freezing point of an aqueous solution is 272.48 K. The osmotic pressure of the same solution at 310 K will be `

1.7.1 pka

2.56 torr

3.7.1 atm

4.6.1 atm

Posted Date:-2021-09-30 18:15:10

## Question: `How many grams of a dibasic acid (Molecular mass = 200) should be present in 100 ml of its aqueous solution to give decinormal strength? `

1.1g

2.2g

3.10 g

4.20 g

Posted Date:-2021-09-30 18:15:10

## Question: `Hydrochloric acid solutions A and B have concentrations 0.5 N and 0.1 N respectively. The volumes of solutions A and B required to make 2 litres of 0.2 N hydrochloric acid are `

1.0.5 L of A + 1.5 L of B

2.1.5 L of A + 0.5 L of B

3.1.0 L of A + 1.0 L of B

4.0.75 L of A + 1.25 L of B.

Posted Date:-2021-09-30 18:15:10

## Question: `If 0.1 M solution of glucose and 0.1 M solution of urea are placed on two sides of the semipermeable membrane to equal heights then it will be correct to say that `

1.There will be no net movement across the membrane

2.Glucose will flow towards urea towards urea solution

3.Urea will flow towards glucose solution

4.Water will flow from urea solution to glucose solution.

Posted Date:-2021-09-30 18:15:10

## Question: `In dilute solution the depression in freezing point is directly proportional to `

1.morality

2.normality

3.molality

4.boiling point

Posted Date:-2021-09-30 18:15:10

## Question: `In the phenomenon of osmosis the semipermeable membrane allows the passage if `

1.solute particles

2.solvent molecules only

3.both solute and solvent

4.None.

Posted Date:-2021-09-30 18:15:10

## Question: `In which of the following cases 1% aq Solution will have the lowest freezing point? `

1.Glucose

2.Fructose

3.Urea

4.Potassium acetate

Posted Date:-2021-09-30 18:15:10

## Question: `Increasing the temperature of an aqueous solution will cause decrease in `

1.Molality

2.Molarity

3.Mole fraction

4.% (W/V).

Posted Date:-2021-09-30 18:15:10

## Question: `Isotonic solutions are those which have same `

1.osmotic pressure

2.vapour pressure

3.boiling points

4.velocity

Posted Date:-2021-09-30 18:15:10

## Question: `Molality of a solution is the number of moles of solute in `

1.1 kg of solvent

2.1 litre of solvent

3.1 litre of solute

4.1 mole of solute

Posted Date:-2021-09-30 18:15:10

## Question: `On dissolving 8.8 gm of non-volatile solute to 100 gm of water the vapour pressure of ice becomes 4.559 mm Hg. If vapour pressure of pure ice is 4.58 mm Hg than molecular weight of the substance should be `

1.345.46

2.245.46 gm

3.34.576 gm

4.360

Posted Date:-2021-09-30 18:15:10

## Question: `or solutions the relation PV = nRT is called `

1.Ideal equation of state

2.Charles equation

3.Vant Hoff equation

4.Boyle-Vanst Hoff equation

Posted Date:-2021-09-30 18:15:10

## Question: `Osmotic pressure of a solution increases by `

1.decreasing the temperature

2.increasing the volume

3.increasing the number of molecules of the solute

4.none of the above.

Posted Date:-2021-09-30 18:15:10

## Question: `Osmotic pressure of a solution of electrolyte does not depend onI. Nature of solute II. Nature of solventIII. Temperature IV. Molar conc. of solute. `

1.I

2.I II

3.II III

4.III IV.

Posted Date:-2021-09-30 18:15:10

## Question: `Osmotic pressure of blood is 7.65 atm at 310 K. An aqueous solution of glucose that will be isotonic with blood will be `

1.2.71 gm

2.54.30%

3.5.43%

4.3%

Posted Date:-2021-09-30 18:15:10

## Question: `Raoults law for solutions containing non-volatile solute is concerned with lowering of `

1.boiling point

2.vapour pressure

3.osmotic pressure

4.melting point

Posted Date:-2021-09-30 18:15:10

## Question: `Solutions with same vapour pressures are called `

1.isotonic

2.isopiestic

3.hypertonic

4.isomorphic.

Posted Date:-2021-09-30 18:15:10

## Question: `The addition of a non-volatile solute to the solvent results in lowering of `

1.vapour pressure as well as boiling point

2.vapour pressure as well as density

3.vapour pressure as well as freezing point

4.boiling point as well as freezing point.

Posted Date:-2021-09-30 18:15:10

## Question: `The amount of a solute required to prepare 10 litres of its decinomrla solution is `

1.0.1 mole

2.0.01 mole

3.1.0 mole

4.1.5 mole

Posted Date:-2021-09-30 18:15:10

## Question: `The amount of gas dissolving in a given volume of the liquid decreases when `

1.temperature and pressure both are decreased

2.temperature and pressure both are increased

3.temperature is increased

4.pressure is decreased

Posted Date:-2021-09-30 18:15:10

## Question: `The boiling point of a 0.1 molal aqueous solution of urea is 100.180C under one atmospheric pressure. The molal elevation constant of water is `

1.5.4

2.0.18

3.1.8

4.3.6

Posted Date:-2021-09-30 18:15:10

## Question: `The cryoscopic constant for water is `

1.1.86

2.2.86

3.1.58

4.3.95

Posted Date:-2021-09-30 18:15:10

## Question: `The enthalpy change on mixing water and ethanol at room temperature is `

1.Zero

2.Positive

3.Negative

4.Depends on proportion of alcohol in the solution.

Posted Date:-2021-09-30 18:15:10

## Question: `The molality of 2% (w/w) aqueous solution of sodium chloride is `

1.0.17 m

2.0.7 m

3.1 m

4.0.34 m.

Posted Date:-2021-09-30 18:15:10

## Question: `The molality of an aqueous solution of NaOH containing 8 gram in 2 litres of solution is: `

1.1.5 M

2.1.0 M

3.0.4 M

4.0.1 M

Posted Date:-2021-09-30 18:15:10

## Question: `The molarity of 6% (W/V) solution of acetic acid is `

1.0.01 M

2.0.1 M

3.1 M

4.0.5 M.

Posted Date:-2021-09-30 18:15:10

## Question: `The molarity of decinormal aqueous solution of sodium hydroxide is `

1.M/5

2.M/10

3.M/2

4.M/100.

Posted Date:-2021-09-30 18:15:10

## Question: `The molarity of pure water is `

1.90

2.556

3.55.6

4.9

Posted Date:-2021-09-30 18:15:10

## Question: `The molarity of solution obtained by dissolving 001 moles of NaCl in 500 ml of solution is `

1.0.01 M

2.0.005 M

3.0.02 M

4.0.10 M.

Posted Date:-2021-09-30 18:15:10

## Question: `The molecular mass of ethyl alcohol is 46. The molality of a solution of ethyl alcohol in water containing 23.0 g of ethyl alcohol in 500 ml solution is `

1.2.5 M

2.3.0 M

3.1.0 M

4.1.5 M

Posted Date:-2021-09-30 18:15:10

## Question: `The normality of a 2.3 M sulphuric acid solution is `

1.0.46 N

2.0.23 N

3.2.3 N

4.4.6 N.

Posted Date:-2021-09-30 18:15:10

## Question: `The number of moles of sodium hydroxide present in 25 L of 05 M aqueous solution is `

1.1.25

2.0.5

3.12.5

4.5

Posted Date:-2021-09-30 18:15:10

## Question: `The osmotic pressure of a solution of benzoic acid in benzene is found to be half the expected value. This is due to the `

1.association of benzoic acid molecules forming dimmers

2.wrong method of measurement of osmotic pressure

3.limitation of the theory of osmotic pressure

4.ionization of benzoic acid

Posted Date:-2021-09-30 18:15:10

## Question: `The ratio of elevation in boiling point of aqueous solution of sodium chloride to that of an aqueous solution of glucose of same molalities is approximately `

1.1

2.2

3.0.5

4.2.5

Posted Date:-2021-09-30 18:15:10

## Question: `The solution that can distil with change in composition is called `

1.saturated solution

2.azeotrope

3.zerotrope

4.none-ideal solution

Posted Date:-2021-09-30 18:15:10

## Question: `The vapour pressure of pure benzene at 298 K is 97.0 mm Hg. The vapour pressure of solution containing 10.0 gm of napthalene (mol. wt. 128) in 100 gm of benzene at 398 K will be `

1.79.5 mm Hg

2.91.43 mm Hg

3.81.45 mm Hg

4.66.5 mm Hg

Posted Date:-2021-09-30 18:15:10

## Question: `The vapour pressure of water at room temperature is 23.8 mm Hg. The vapour pressure of an aqueous solution of mole fraction 0.1 is equal to `

1.11.22 mm Hg

2.21.42 mm Hg

3.24.2 mm Hg

4.11.42 mm Hg

Posted Date:-2021-09-30 18:15:10

## Question: `The vapour pressure of water at room temperature is 30 mm. If the mole fraction of the solvent in solution is 0.9 the vapour pressure of aqueous solution at room temperature will be `

1.18 mm

2.36 mm

3.72 mm

4.27 mm

Posted Date:-2021-09-30 18:15:10

## Question: `The volume of water that must be added to a mixture of 250 ml of M HCl and 750 ml of 2 M HCl to obtain 2.5 M solution is `

1.75 ml

2.150 ml

3.100 ml

4.200 ml

Posted Date:-2021-09-30 18:15:10

## Question: `Two beakers contain 1 L and 250 ml of pure water respectively. What is same in them? `

1.number of moles

2.number of molecules

3.molarity

4.mass.

Posted Date:-2021-09-30 18:15:10

## Question: `Two liquids A and B form an ideal solution At 300 K the vapour pressure of a solution of 1 mole of A and x moles of B is 550 mm If the vapour pressures of pure A and B are 400 mm and 600 mm respectively then x is `

1.1

2.2

3.3

4.4

Posted Date:-2021-09-30 18:15:10

## Question: `Two solutions A and B are separated by a semipermeable membrane. Solution B has greater vapour pressure than solution A. Water will flow from `

1.A to B

2.B to A

3.No flow of water

4.Direction of flow cannot be predicted.

Posted Date:-2021-09-30 18:15:10

## Question: `What volume of 0.8 M solution contains 0.1 mole of the solute? `

1.100 ml

2.125 ml

3.500 ml

4.62.5 ml.

Posted Date:-2021-09-30 18:15:10

## Question: `When 18 g of a compound was dissolved in 100 g of water the vapour pressure of the latter was lowered from 17.54 mm to 17.23 mm of mercury. The molecular mass of compound is `

1.2900

2.368

3.184

4.92

Posted Date:-2021-09-30 18:15:10

## Question: `When a saturated solution of sodium chloride is heated it becomes `

1.unsaturated

2.supersaturated

3.remains saturated

4.attains equilibrium conditions

Posted Date:-2021-09-30 18:15:10

## Question: `Which is an example of colligative property? `

1.Boiling point

2.osmosis

3.freezing point

4.osmotic pressure.

Posted Date:-2021-09-30 18:15:10

## Question: `Which of the following are not colligative properties? `

1.Relative lowering of vapour pressure

2.Surface tension

3.Osmosis

4.Both b and c.

Posted Date:-2021-09-30 18:15:10

## Question: `Which of the following change with increase in temperatureI Molality II MolarityIII Mole fraction IV Normality `

1.I II

2.II

3.I IV

4.II IV.

Posted Date:-2021-09-30 18:15:10

## Question: `Which of the following is not a colligative property? `

1.Boiling pressure

2.Lowering of freezing point

3.Vapour pressure

4.Osmotic pressure

Posted Date:-2021-09-30 18:15:10

## Question: `Which of the following solutions will have highest value of depression in freezing point? `

1.6% aqueous solution of glucose

2.6% aqueous solution of urea

3.6% aqueous solution of sucrose

4.all the above will have same value.

Posted Date:-2021-09-30 18:15:10

## More MCQS

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