Question # 1

The ionic strength of a solution containing 0.1 mole/kg of KCl and 0.2 mole/kg of CuSO₄is

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0.3

0.6

0.9

0.2

Which is not a colligative property?

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Osmotic pressure

Lowering of vapour pressure

Depression of freezing point

Elevation of boiling point

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

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1 molal

1.1 molal

0.5 molal

0.1 molal

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

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0.025 M

1.5 M

0.1 M

.25 M

An azeotropic mixture showing it's positive deviation from Raoult's law, the volume of the mixture is :

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Slightly more than the total volume of the components.

Slightly less than the total volume of the components.

Equal to the total volume of the components.

None of these.

The molar boiling point constant is the ration of elevation in boiling point to :

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Molarity

Mole fraction of solvent

Mole fraction of solute.

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

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1 g

2 g

10 g

20 g

Which is independent of temperature

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Molarity

Molality

Normality

Mole fraction

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

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10.5 %

5%

8.02%

11.5%

The boiling point of an a zeotropic mixture of water and ethye alcohol is less than that of water and alcohol. The mixture shows

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That solution is highly saturated

No deviation from Raoult's law

Positive deviation from Raoult's law

Negative deviation from Raoult's law

The amount of solute present in the given amount of solvent is called

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Molarity

Molality

Concentration

Solubility

Solution may have units

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Molarity

Molality

Mole fraction

All of them

Which substances are mixed to form a buffer solution?

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A strong acid and its salt of a strong base

Strong acid and its salt of weak base

Weak acid and its salt of strong base

Weak acid and its salt of weak base

Partial pressure of a solution component is directly proportional to its mole fraction. This statement is known as

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Henry's law

Raoult's law

Distribution law

Ostwald's dilution law

The vant Hoff factor (1) accounts for

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Degree of solubilisation of solute

The extent of dissolution of solute

The degree of decomposition of solution

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ECAT Chemistry Chapter 9 Solutions Online Test MCQs With Answers

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