ECAT Pre Engineering Chemistry Chapter 3 MCQ Test With Answer

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A

Abdullah Zubair 17 - Dec - 2024 04 Min 34 Sec 120/120
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Khalida Amjad 23 - Oct - 2024 01 Min 52 Sec 115/120
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Fatima Tabassum 11 - Jan - 2025 02 Min 30 Sec 115/120
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rehan sanaullah 06 - Jun - 2024 05 Min 12 Sec 105/120
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kayani 17 - Jul - 2024 07 Min 39 Sec 95/120
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notghouri playz 16 - Dec - 2024 16 Min 23 Sec 95/120
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Mirza Abdullah 11 - Jun - 2024 04 Min 21 Sec 90/120
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Aman Fatima 03 - Jan - 2026 17 Min 21 Sec 88/120
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Laiba Jawad 21 - Sep - 2024 07 Min 29 Sec 80/120
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M Saifullah 02 - Jul - 2024 12 Min 19 Sec 80/120
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Shazi Ansari 05 - Jun - 2024 03 Min 12 Sec 75/120
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Eraj Abeer 18 - Dec - 2024 04 Min 19 Sec 75/120
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Yasmeen Ashraf 04 - Jun - 2024 06 Min 46 Sec 75/120

ECAT Chemistry Chapter 3 Important MCQ's

Sr.#	Question	Answer
1	Which of the following is the simplest form of matter?	A. Gaseous state B. Liquid State C. Solid State D. All of above
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	Liquids are less common than	A. Solids B. Plasmas C. Gases D. All of above
4	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
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	Keeping the temperature constant, if the gas is expanded	A. kinetic energy of molecules will increase B. Number of gas molecules increases C. Temperature will increases D. Pressure will decrease
7	In Boyle's law which of the following pair is variable	A. Temperature and quantity of a gas B. Pressure and Volume C. Volume and quantity of a gas D. Pressure and quantity of a gas
8	A real gas obeying van der Waals' equation will resemble ideal gas if :	A. both 'a' and 'b' are large B. both 'a' and 'b' are small C. 'a' is small and 'b' is large D. 'a' is large and 'b' is small
9	The graph between pressure and volume at constant temperature for a gas is	A. Isobaric B. Isothermal C. Isotherm D. None of above
10	The order of the rate of diffusion of gases NH₃,SO₂, CL₂, and CO₂ IS :	A. NH_{3 >}SO_{2 >}CL_{2 >}CO₂ B. NH_{3 >}CO_{2 >}SO_{2 >}CL₂ C. CL_{2 >}SO_{2 >}CO_{2 >}NH₃ D. NH_{3 >}CO₂_>CL_{2 >}SO₂

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ECAT Pre Engineering Chemistry Chapter 3 MCQ Test With Answer

MCQ's Test For ECAT Chemistry Chapter 3 Gases

ECAT Chemistry Chapter 3 Gases

The highest temperature at which a substance can exist as a liquid is called its

The density of a gas is directly and volume at constant temperature for a gas is

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

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

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

Equal masses of methane and oxygen are mixed in an empty container at 25°CThe fraction of total pressure exerted by oxygen is :

All gases can be compressed by :

Keeping the temperature constant, if the gas is expanded

Gases exert pressure on walls of container because the gas molecules

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

Which of the following is the simplest form of matter?

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

Gases shows uniform behavior toward their :

In gases and liquids, temperature is the measure of :

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

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

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

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

How should condition be changed to prevent the volume of a given gas from expanding whine its mass is increased ?

Gases exert pressure on walls of container because the gas molecules :

All gases can be compressed by

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

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

Boyle's law does not fall even

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

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

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

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

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

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

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ECAT Chemistry Chapter 3 Important MCQ's

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