Solution Test 2

Total Questions:50 Total Time: 75 Min

Remaining:

 

Questions 1 of 50

Question:The solution of sugar in water contains

Answers Choices:

Free atoms

Free ions

Free molecules

Free atom and molecules

Questions 2 of 50

Question:\(25\,ml\) of \(3.0\,M\,HN{O_3}\) are mixed with \(75\,ml\) of \(4.0\,M\,HN{O_3}\). If the volumes are additive, the molarity of the final mixture would be

Answers Choices:

\(3.25\,M\)

\(4.0\,M\)

\(3.75\,M\)

\(3.50M\)

Questions 3 of 50

Question:The largest number of molecules is in

Answers Choices:

\(25g\) of \(C{O_2}\)

\(46g\) of \({C_2}{H_5}OH\)

\(36g\) of \({H_2}O\)

\(54g\) of \({N_2}{O_5}\)

Questions 4 of 50

Question:If 1 M and 2.5 litre NaOH solution is mixed with another 0.5 M and 3 litre NaOH solution, then molarity of the resultant solution will be

Answers Choices:

1.0 M

0.73 M

0.80 M

0.50 M

Questions 5 of 50

Question:The number of moles present in 2 litre of 0.5 M \(NaOH\) is

Answers Choices:

0.5

0.1

1

2

Questions 6 of 50

Question:36g water and 828g ethyl alcohol form an ideal solution. The mole fraction of water in it, is

Answers Choices:

1

0.7

0.4

0.1

Questions 7 of 50

Question:What volume of \(0.8\,M\) solution contains 0.1 mole of the solute

Answers Choices:

\(100\,ml\)

\(125\,ml\)

\(500\,ml\)

\(62.5\,ml\)

Questions 8 of 50

Question:Hydrochloric acid solution \(A\) and \(B\) have concentration of \(0.5N\)and \(0.1N\) respectively. The volumes of solutions \(A\) and \(B\) required to make \(2\,litres\) of \(0.2N\) \(HCl\) are

Answers Choices:

\(0.5\,l\) of \(A + 1.5\,l\) of \(B\)

\(1.5\,l\) of \(A + 0.5l\) of \(B\)

\(1.0\,l\) of \(A + 1.0\,l\) of \(B\)

\(0.75\,l\) of \(A + 1.25l\) of \(B\)

Questions 9 of 50

Question:The weight of pure \(NaOH\) required to prepare \(250c{m^3}\) of \(0.1N\) solution is

Answers Choices:

\(4g\)

\(1g\)

\(2g\)

\(10g\)

Questions 10 of 50

Question:If \(20ml\) of \(0.4N\,NaOH\) solution completely neutralises \(40ml\) of a dibasic acid. The molarity of the acid solution is

Answers Choices:

\(0.1M\)

\(0.2M\)

\(0.3M\)

\(0.4M\)

Questions 11 of 50

Question:What is the molality of a solution which contains 18 g of glucose \(({C_6}{H_{12}}{O_6})\) in 250 g of water

Answers Choices:

4.0 m

0.4 m

4.2 m

0.8 m

Questions 12 of 50

Question:Calculate the molality of 1 litre solution of 93% \({H_2}S{O_4}\)(weight/volume). The density of the solution is 1.84 g /ml

Answers Choices:

10.43

20.36

12.05

14.05

Questions 13 of 50

Question:Molarity of a solution containing \(1g\,NaOH\) in \(250ml\) of solution is

Answers Choices:

\(0.1M\)

\(1M\)

\(0.01\,M\)

\(0.001\,M\)

Questions 14 of 50

Question:What is molarity of a solution of HCl which contains 49% by weight of solute and whose specific gravity is 1.41

Answers Choices:

15.25

16.75

18.92

20.08

Questions 15 of 50

Question:How many grams of \(NaOH\) will be required to neutralize 12.2 grams of benzoic acid

Answers Choices:

\(40\,gms\)

\(4gms\)

\(16gms\)

\(12.2\,gms\)

Questions 16 of 50

Question:\(10ml\) of conc. \({H_2}S{O_4}\) (18 molar) is diluted to 1 litre. The approximate strength of dilute acid could be

Answers Choices:

0.18 N

0.09 N

0.36 N

1800 N

Questions 17 of 50

Question:Addition of conc. HCl to saturated \(BaC{l_2}\) solution precipitates \(BaC{l_2}\); because

Answers Choices:

It follows from Le Chatelier’s principle

Of common-ion effect

Ionic product \((B{a^{ + + }}),\)\((C{l^ - })\)remains constant in a saturated solution

At constant temperature, the product \((B{a^{2 + }}),\) \({(C{l^ - })^2}\) remains constant in a saturated solution

Questions 18 of 50

Question:How much water is needed to dilute 10 ml of 10 N hydrochloric acid to make it exactly decinormal (0.1 N)

Answers Choices:

990 ml

1000 ml

1010 ml

100 ml

Questions 19 of 50

Question:A solution contains 1 mole of water and 4 mole of ethanol. The mole fraction of water and ethanol will be

Answers Choices:

0.2 water + 0.8 ethanol

0.4 water + 0.6 ethanol

0.6 water + 0.8 ethanol

0.8 water + 0.2 ethanol

Questions 20 of 50

Question:The magnitude of colligative properties in all colloidal dispersions is............ than solution

Answers Choices:

Lower

Higher

Both

None

Questions 21 of 50

Question:When mercuric iodide is added to the aqueous solution of potassium iodide, the

Answers Choices:

Freezing point is raised

Freezing point is lowered

Freezing point does not change

Boiling point does not change

Questions 22 of 50

Question:Vapour pressure of a solution is

Answers Choices:

Directly proportional to the mole fraction of the solvent

Inversely proportional to the mole fraction of the solute

Inversely proportional to the mole fraction of the solvent

Directly proportional to the mole fraction of the solute

Questions 23 of 50

Question:When a substance is dissolved in a solvent, the vapour pressure of the solvent is decreased. This results in

Answers Choices:

An increase in the boiling point of the solution

A decrease in the boiling point of solvent

The solution having a higher freezing point than the solvent

The solution having a lower osmotic pressure than the solvent

Questions 24 of 50

Question:The vapour pressure of a liquid depends on

Answers Choices:

Temperature but not on volume

Volume but not on temperature

Temperature and volume

Neither on temperature nor on volume

Questions 25 of 50

Question:In an experiment, 1 g of a non-volatile solute was dissolved in 100 g of acetone (mol. mass = 58) at 298K. The vapour pressure of the solution was found to be 192.5 mm Hg. The molecular weight of the solute is (vapour pressure of acetone = 195 mm Hg)

Answers Choices:

25.24

35.24

45.24

55.24

Questions 26 of 50

Question:How many grams of \(C{H_3}OH\) should be added to water to prepare \(150\,ml\) solution of \(2\,M\,C{H_3}OH\)

Answers Choices:

9.6

2.4

\(9.6 \times {10^3}\)

\(2.4 \times {10^3}\)

Questions 27 of 50

Question:When two liquid A and B are mixed then their boiling points becomes greater than both of them. What is the nature of this solution

Answers Choices:

Ideal solution

Positive deviation with non ideal solution

Negative deviation with non ideal solution

Normal solution

Questions 28 of 50

Question:In mixture A and B components show -ve deviation as

Answers Choices:

\(\Delta {V_{{\rm{mix}}}} > 0\)

\(\Delta {H_{{\rm{mix}}}} < 0\)

A-B interaction is weaker than A-A and B-B interaction

A-B interaction is strong than A-A and B-B interaction

Questions 29 of 50

Question:Which of the following is not correct for ideal solution

Answers Choices:

\(\Delta {S_{mix}} = 0\)

\(\Delta {H_{mix}} = 0\)

It obeys Raoult's law

\(\Delta {V_{mix}} = 0\)

Questions 30 of 50

Question:Which of the following does not show negative deviation from Raoult's law

Answers Choices:

Acetone-Chloroform

Acetone-Benzene

Chloroform-Ether

Chloroform-Benzene

Questions 31 of 50

Question:The osmotic pressure of a 5% (wt/vol) solution of cane sugar at \({150^o}C\) is

Answers Choices:

2.45 atm

5.078 atm

3.4 atm

4 atm

Questions 32 of 50

Question: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

Answers Choices:

\({P_1} > {P_2} > {P_3}\)

\({P_3} > {P_1} > {P_2}\)

\({P_2} > {P_1} > {P_3}\)

\({P_2} > {P_3} > {P_1}\)

Questions 33 of 50

Question:The solution in which the blood cells retain their normal form are with regard to the blood

Answers Choices:

Isotonic

Isomotic

Hypertonic

Equinormal

Questions 34 of 50

Question:The osmotic pressure of a solution is given by the relation

Answers Choices:

\(P = \frac{{RT}}{C}\)

\(P = \frac{{CT}}{R}\)

\(P = \frac{{RC}}{T}\)

\(\frac{P}{C} = RT\)

Questions 35 of 50

Question:The osmotic pressure of solution increases, if

Answers Choices:

Temperature is decreased

Solution concentration is increased

Number of solute molecules is increased

Volume is increased

Questions 36 of 50

Question:At the same temperature, following solution will be isotonic

Answers Choices:

3.24 gm of sucrose per litre of water and 0.18 gm glucose per litre of water

3.42 gm of sucrose per litre and 0.18 gm glucose in 0.1 litre water

3.24 gm of sucrose per litre of water and 0.585 gm of sodium chloride per litre of water

3.42 gm of sucrose per litre of water and 1.17 gm of sodium chloride per litre of water

Questions 37 of 50

Question:Which of the following associated with isotonic solution is not correct

Answers Choices:

They will have the same osmotic pressure

They have the same weight concentration

Osmosis does not take place when the two solutions are separated by a semipermeable membrane

They will have the same vapour pressure

Questions 38 of 50

Question:If osmotic pressure of a solution is \(2\,atm\) at \(273K\), then at \(546K\), the osmotic pressure is

Answers Choices:

0.5 atm

1 atm

2 atm

4 atm

Questions 39 of 50

Question:If the solution boils at a temperature \({T_1}\) and the solvent at a temperature \({T_2}\) the elevation of boiling point is given by

Answers Choices:

\({T_1} + {T_2}\)

\({T_1} - {T_2}\)

\({T_2} - {T_1}\)

\({T_1} \div {T_2}\)

Questions 40 of 50

Question:If for a sucrose solution elevation in boiling point is 0.1\(^0\) C then what will be the boiling point of NaCl solution for same molal concentration

Answers Choices:

0.1\(^0\) C

0.2\(^0\) C

0.08\(^0\) C

0.01\(^0\) C

Questions 41 of 50

Question:The amount of urea to be dissolved in 500 ml of water (K =18.6 K \(mol{e^{ - 1}}\)in 100g solvent) to produce a depression of \({0.186^o}C\) in freezing point is

Answers Choices:

9 g

6 g

3 g

0.3 g

Questions 42 of 50

Question:The maximum freezing point falls in

Answers Choices:

Camphor

Naphthalene

Benzene

Water

Questions 43 of 50

Question:What is the effect of the addition of sugar on the boiling and freezing points of water

Answers Choices:

Both boiling point and freezing point increases

Both boiling point and freezing point decreases

Boiling point increases and freezing point decreases

Boiling point decreases and freezing point increases

Questions 44 of 50

Question:During depression of freezing point in a solution the following are in equilibrium

Answers Choices:

Liquid solvent, solid solvent

Liquid solvent, solid solute

Liquid solute, solid solute

Liquid solute solid solvent

Questions 45 of 50

Question:Which one has the highest osmotic pressure

Answers Choices:

\(M/10\,HCl\)

\(M/10\) urea

\(M/10\,BaC{l_2}\)

\(M/10\) glucose

Questions 46 of 50

Question:In equimolar solution of glucose, \(NaCl\) and \(BaC{l_2}\), the order of osmotic pressure is as follow

Answers Choices:

Glucose \( > \,NaCl\,\, > \,\,BaC{l_2}\)

\(NaCl\,\, > \,\,BaC{l_2}\,\, > \) Glucose

\(BaC{l_2}\,\, > \,\,NaCl\,\, > \) Glucose

Glucose \( > \,\,BaC{l_2}\,\, > \,\,NaCl\)

Questions 47 of 50

Question:Which of the following will have the highest F.P. at one atmosphere

Answers Choices:

\(0.1M\,NaCl\) solution

\(0.1M\)sugar solution

\(0.1M\,BaC{l_2}\) solution

\(0.1M\,FeC{l_3}\) solution

Questions 48 of 50

Question:Which of the following will produce the maximum depression in freezing point of its aqueous solution

Answers Choices:

\(0.1M\) glucose

\(0.1M\)sodium chloride

\(0.1M\)barium chloride

\(0.1M\)magnesium sulphate

Questions 49 of 50

Question:Which of the following compounds corresponds Van't Hoff factor \('i'\) to be equal to 2 for dilute solution

Answers Choices:

\({K_2}S{O_4}\)

\(NaHS{O_4}\)

Sugar

\(MgS{O_4}\)

Questions 50 of 50

Question:The Van't Hoff factor \(i\) for a 0.2 molal aqueous solution of urea is

Answers Choices:

0.2

0.1

1.2

1