ECAT Pre Engineering Chemistry Chapter 3 MCQ Test With Answer

MCQ's Test For ECAT Chemistry Chapter 3 Gases

Try The MCQ's Test For ECAT Chemistry Chapter 3 Gases

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ECAT Chemistry Chapter 3 Gases

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Question # 1

The deviation of a gas from ideal behavior is maximum at :

Question # 2

Which Statement about gases is not correct?

Question # 3

Liquids are less common than

Question # 4

At constant temperature when pressure of a gas is plotted against volume, the curve is

Question # 5

The product of pressure and volume remains constant when temperature and quantity of gas is

Question # 6

The intramolecular forces in gases are

Question # 7

Gases deviate from ideal behavior at high pressure. Which of the following is correct for non-ideality ?

Question # 8

In Boyle's law which of the following pair is variable

Question # 9

The movement of gas molecules from a region of high pressure to vacuum is called

Question # 10

Gases shows uniform behavior toward their :

Question # 11

The graph between pressure and volume at constant temperature for a gas is

Question # 12

In Boyle's law which of the following pair remains constant

Question # 13

Boyle's law is represented as :

Question # 14

In gases and liquids, temperature is the measure of :

Question # 15

Liquids are less common than :

Question # 16

Boyle's law doesn't fail even :

Question # 17

According to Boyle's law. which parameters give a straight line parallel to x-axis, when we plot a graph between

Question # 18

According to Boyle's law, which parameters give a straight line parallel to axis-s, when we plot a graph between:

Question # 19

The order of the rate of diffusion of gases NH3,SO2, CL2, and CO2 IS :

Question # 20

Cooling happens under the Joule Thomson Effect due to sudden :

Question # 21

A graph between P and PV at constant temperature and number of mole is parallel to

Question # 22

Which statement about gases is not correct ?

Question # 23

Number of molecules in one dm3 of water is close to :

Question # 24

In Boyle's law which of the following pair remains constant :

Question # 25

The relationships between volume of a given amount of gas and the prevailing conditions of temperature and pressure are

Question # 26

The rate of diffusion of a gas is :

Question # 27

The relation ships b/w volume of given amount of gas and prevailing conditions of temperature and pressure are :

Question # 28

A graph b/w P and 1/V at constant temperature and number of moles is parallel to :

Question # 29

In solids, the temperature of is the measure of

Question # 30

For a gas obeying Boyle's law if pressure is doubled, the volume becomes

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ECAT Chemistry Chapter 3 Important MCQ's

Sr.# Question Answer
1 If absolute temperature of a gas is doubled and the pressure is reduced to one half, the volume of gas will :
A. remain unchanged
B. increase four times
C. reduce to 1/4
D. be doubled
2 In gases and liquids, temperature is the measure of
A. Average translational kinetic energies of molecules
B. Average vibrational kinetic energies of molecules
C. Average rotational kinetic energies of molecules
D. None of above
3 The rate of diffusion of a gas is :
A. Inversely proportional to its density
B. Inversely proportional to square root of its molecular mass
C. Directly proportional to molecular mass
D. Directly proportional to its density
4 According to Boyle's law, which parameters give a straight line parallel to axis-s, when we plot a graph between:
A. V and T
B. P and V
C. P and 1/V
D. P and PV
5 Boyle's law doesn't fail even :
A. Temperature is extremely high
B. Pressure is extremely high
C. Mixture of gas is taken
D. All of above
6 According to Boyle's law. which parameters give a straight line parallel to x-axis, when we plot a graph between
A. V and T
B. P and V
C. P and 1/V
D. P and PV
7 A graph between P and 1/V at constant temperature and number moles of a gas meets the
A. y-axis
B. x-axis
C. origin
D. none of above
8 Gases of air always remain in random motion and do not settle due to :
A. Difference in molecular masses of air gases.
B. Difference in partial pressure of gas molecules.
C. Unequal number of different gas molecules.
D. Elastic collision of gas molecules.
9

Number of molecules in one dm3 of water is close to :
A.

6.02/22.4


B.

12.04/22.4 *1023


C.

18/22.4*1023

D.

55.6*6.02*1023 * 1023
10 The deviation of a gas from ideal behavior is maximum at :
A. -10°C and 5.0 atm
B. -10°C and 2.0 atm
C. 100°C and 2.0 atm
D. 0°C and 2.0 atm

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  • ahsan

    ahsan

    20 Jul 2019

    hello

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