Question # 1

How many g of dibasic acid (mol. wt. 200) should be present in 100 ml of the aqueous solution to give 0.1 Normality?

Choose an answer

1 g

2 g

10 g

20 g

Which one of the following is a colligative property?

Choose an answer

Surface tension

Osmotic pressure

Viscosity

Refractive index

An azeotropic mixture of two liquids boils at a lower temperature than either of them when lower temperature

Choose an answer

It is saturated

it shows positive deviation from Raoult's law

It shows negative deviation form Raoult's law

It is metastable

Which of the following will have the highest boiling point at 1 atm pressure?

Choose an answer

0.1 M NaCl

0.1 M Sucrose

0.1 M BaCl₂

0.1 M Glucose

10% aqueous solution of NaCI has molarity

Choose an answer

1.7 M

2.7 M

0.17 M

3.7 M

In cold countries ethylene glycol is added to water in radiators of cars during winter. It results in

Choose an answer

Lowering in b.pt

Reducing viscosity

Reducing specific heat

Lowering in freezing pt

The percentage by weight of NaCl, if 6.0 g of NaCl is dissolved in 120 g of water is

Choose an answer

10.5 %

5%

8.02%

11.5%

10g Of NaOH Has Been Dissolved Perdm³of solution. The morality of solution is :

Choose an answer

0.025 M

1.5 M

0.1 M

.25 M

Which is independent of temperature

Choose an answer

Molarity

Molality

Normality

Mole fraction

As compared to molar solution, in the molal solution the quantity of solvent is :

Choose an answer

Comparatively lesser

More or less equal

Comparatively greater

Very large

Azeotropic mixture of HCl and water has

Choose an answer

48% HCl

22.2% HCl

36% HCl

20.2% HCl

A solution contains 1.2046 x 10²⁴hydrochloric acid molecules in one dm³of the solution. The strength of the solution is

Choose an answer

6 N

2 N

4 N

8 N

If 5.85 g of NaCl are dissolved in 90 g of water, the mole fraction of NaCl is

Choose an answer

0.1

0.01

0.2

0.0196

Osmotic pressure of a solution increases by

Choose an answer

Decreasing the temperature

Increasing the volume

Increasing the number of molecules of the solute

None of the above

A solution containing 5.8 grams acetone (CH₃OCH₃), 4.6 gram ethyl alcohol (C₂H₅OH) and 12 grams chloroform (CHl₃) has mole fraction and mole percent of acetone

Choose an answer

0.11, 10%

0.33, 33%

0.22, 22%

0.11, 33%

Molarity of pure water is :

Choose an answer

33.3

55.5

44.4

66.6

Solubility cure of Na₂SO₄10H₂shows

Choose an answer

Constant increase of solubility

Constant decreases of solubility

Discontinuously solubility wit temperature

None of above

What is the molarity of a solution containing 15.0 g urea in 500 cm³of solution

Choose an answer

0.5 M

1 M

1.5 M

2 M

Solutions with same osmotic pressures are called

Choose an answer

Hypertonic

Hypotonic

Isotonic

Normal

In azeotropic mixture showing negative deviation form Raoult's law show

Choose an answer

Higher b.p. than either

Lower b.p. than either

No change in b.p.

None of these

Isotonic solutions have same

Choose an answer

Molar concentration

Molality

Normality

None of these

(A) is one molar NaCl solution and (b) is 1 molal NaCl solutin :

Choose an answer

A and B are of same strength.

A is more Concentrate than B.

b is more Concentrate than A.

None of above.

The relative lowering of vapour pressure is equal to the mole fraction of the solute is statement of

Choose an answer

Rault law

Henry law

Dalton law

Grahms law

If 18 g glucose (C₆H₁₂C₆) is present in 1000 g of an aqueous of glucose it is said to be

Choose an answer

1 molal

1.1 molal

0.5 molal

0.1 molal

A solution containing maximum amount of solute dissolved at a given temperature is called

Choose an answer

Saturated solution

Unsaturated solution

Supersaturated solution

Impure solution

The concentration units independent of temperature would be

Choose an answer

Normality

Mass-volume precent

Molality

Molarity

0.5 M of H₂SO₄is diluted from 1 litre to 10 litre, normality of resulting solution is

Choose an answer

1 N

0.1 N

10 N

11 N

The volume of 0.1 M H₂SO₄required to neutralize completely 40 ml of 0.2 M NaOH solution is

Choose an answer

10 ml

40 ml

20 ml

50 ml

The molarity of toluene solution in benzene is 0.22 if 5 grams of toluene dissolved, then mass of benzene is grams is

Choose an answer

267

260

240

247

The freezing point of 1 molal NaCl solution assuming NaCl to be 100% dissociated in water in

Choose an answer

-1.86°C

-3.72°C

+1.86°C

+3.72°C

Solubility of a substance in water decreases with rise in temperature except

Choose an answer

CaCI₂. 6H₂O

Pb(NO₃)₂

K₂Cr₂O₇

Ce₂(SO₄)₃

More Classes

Other Links

ECAT Chemistry Chapter 9 Solutions Online Test MCQs With Answers

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer