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

Boyle's law does not fall even

Question # 2

Boyle's law doesn't fail even :

Question # 3

Gases of air always remain in random motion and do not settle due to :

Question # 4

In gases and liquids, temperature is the measure of :

Question # 5

If absolute temperature of a gas is doubled and the pressure is reduced to one half, the volume of the gas will be

Question # 6

A graph between P and 1/V at constant temperature and number moles of a gas meets the

Question # 7

In solids, the temperature of is the measure of

Question # 8

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

Question # 9

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

Question # 10

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

Question # 11

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

Question # 12

The intramolecular forces in gases are

Question # 13

Pressure remaining constant, at which temperature volume of gas will become twice of what it is at 0°C ?

Question # 14

Which Statement about gases is not correct?

Question # 15

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

Question # 16

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

Question # 17

Cooling happens under the Joule Thomson Effect due to sudden :

Question # 18

Absolute temperature of a gas is proportional to

Question # 19

All gases can be compressed by :

Question # 20

In Solids, the temperature is the measure of

Question # 21

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

Question # 22

In gases and liquids, temperature is the measure of

Question # 23

Which statement about gases is not correct ?

Question # 24

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

Question # 25

The molar value of CO2 is maximum at :

Question # 26

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

Question # 27

If absolute temperature of a gas is doubled and the pressure is reduced to one half, the volume of gas will :

Question # 28

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

Question # 29

Gases exert pressure on walls of container because the gas molecules

Question # 30

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

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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 A graph between P and PV at constant temperature and number of mole is parallel to
A. y axis
B. z axis
C. x axis
D. pressure axis
3 The relation ships b/w volume of given amount of gas and prevailing conditions of temperature and pressure are :
A. Charles's law
B. Graham's law
C. Boyle's law
D. Gas law
4 Absolute temperature of a gas is proportional to
A. Rotational kinetic energy
B. Translational kinetic energy
C. Vibrational kinetic energy
D. Potential energy
5

Which of the following will have the same number of molecules at STP ?
A.

280 CM3 of CO2 and 280 CM3 of N2O

B.

11.2 dm3 of O2 and 32 g of O2

C.

44 g of CO2 and 11.2 dm3 of CO

D.

28 g of N2 and 5.6 dm3 of oxygen
6 At constant temperature when pressure of a gas is plotted against volume, the curve is
A. Slanting straight line
B. Parabolic
C. Staight line, parallel to pressure axis
D. OF neither type
7

Which of the following is the simplest form of matter?
A. Gaseous state
B. Liquid state
C. Solid state
D. All of above
8 In Solids, the temperature is the measure of
A. Rotational kinetic energies
B. Translational kinetic energies
C. Vibrational kinetic energies
D. None of above
9 Equal masses of methane and oxygen are mixed in an empty container at 25°CThe fraction of total pressure exerted by oxygen is :
A. 1/2
B. 8/9
C. 1/9
D. 16/17
10 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

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  • ahsan

    ahsan

    20 Jul 2019

    hello

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