ECAT Pre Engineering Chemistry Chapter 9 MCQ Test With Answer for Chemistry chapter 9 (Solutions)

ECAT Pre Engineering Chemistry Ch 9 Test
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MCQ's Test For ECAT Chemistry Chapter 9 Solutions Online Test

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ECAT Chemistry Chapter 9 Solutions Online Test

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Question # 1

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

Question # 2

The term ebullioscopy is used for

Question # 3

Which of the following is a colligative property?

Question # 4

The vant Hoff factor (1) accounts for

Question # 5

Which statement is not true. A solution is a homogeneous mixture of

Question # 6

Which of the following solutions has the highest boiling point ?

Question # 7

A solutiion of 0.5 mole camphor in 100 grmas chloroform (Kb= 0.322) has rise in boiling point than that of chloroform by

Question # 8

The vapour pressure of two liquids 'p' and 'Q' are 80 and 60 torr respectively. The total vapour pressure of solution obtained by mixing 3 mole of P and 2 mol of Q would be

Question # 9

If the ionic product of a solution is less than the solubility product, the solution is

Question # 10

Saturated solution of NaCl on heating becomes

Question # 11

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

Question # 12

Which if the following has the highest freezing point at one atmosphere

Question # 13

Dust particles in smoke is a solution of the type

Question # 14

To calculate volume of the solvent, we need to know, the :

Question # 15

The number of moles of NH4CI dissolved in 500 cm3of its 15%, W/N solution is

Question # 16

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

Question # 17

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

Question # 18

What is the molarity of the solution that contains 20 grams of NaOH in 500 ml of solution [Na = 23, O = 16, H = 1]

Question # 19

Which one of the following is a colligative property?

Question # 20

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

Question # 21

Which one of the following has discontinuous solubility curve

Question # 22

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

Question # 23

The weight of pure NaOH required to prepare 250 cm3of 0.1 N solution is

Question # 24

Which one of the following has continuous solubility curve

Question # 25

1.0 g pure calcium carbonate was found to require 50 ml of dilute HCl for complete reaction. The strength of HCl solution is given by

Question # 26

10 ml of 1.5 M NaOH solution is neutralized by 20 ml of a-M HCl solution. The value of 'a' will be

Question # 27

The depression of freezing point is directly proportional to

Question # 28

Ifα us the degree of dissociation of Na2SO4the vant Hoff's factor (1) used for calculating the molecular mass is

Question # 29

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

Question # 30

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

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