ECAT Pre Engineering Chemistry Chapter 3 MCQ Test With Answer

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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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AS creations 16 - Jun - 2026 07 Min 11 Sec 96/120
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Umar Saeed 21 - Jul - 2024 02 Min 11 Sec 95/120
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kayani 17 - Jul - 2024 07 Min 39 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

ECAT Chemistry Chapter 3 Important MCQ's

Sr.#	Question	Answer
1	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
2	The intramolecular forces in gases are	A. Weak B. Normal C. Very weak D. Strong
3	Boyle's law is represented as :	A. P∞ 1/T B. V and 1/P C. P∞P D. P∞1/P
4	Gases show uniform behaviour towards their	A. Internal conditions B. External conditions C. Internal and external conditions D. None of above
5	The highest temperature at which a substance can exist as a liquid is called its	A. Critical temperature B. Zero temperature C. Absolute temperature D. None of above
6	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
7	The density of a gas is directly and volume at constant temperature for a gas is	A. Isobaric B. Isothermal C. Isotherm D. None of above
8	The density of a gas is directly proportional to pressure, inversely proportional to temperature and directly proportional to	A. Viscosity B. Molar mass C. Momentum D. All of above
9	Gases exert pressure on walls of container because the gas molecules	A. Obey gas laws B. Have definite volume C. Collide with the walls of container D. Collide with each other
10	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

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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

Gases shows uniform behavior toward their :

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

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

Cooling happens under the Joule Thomson Effect due to sudden

All gases can be compressed by

Boyle's law doesn't fail even :

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

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

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

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

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

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

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

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

Which of the following is the simplest form of matter?

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

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

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

The intramolecular forces in gases are

Boyle's law is represented as :

In gases and liquids, temperature is the measure of

The molar value of CO2 is maximum at :

In Solids, the temperature is the measure of

Keeping the temperature constant, if the gas is expanded

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

Which statement about gases is not correct ?

The density of a gas is directly proportional to pressure, inversely proportional to temperature and directly proportional to

All gases can be compressed by :

Which of the following is the simplest form of matter?

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

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Top Scorers Of ECAT Chemistry Chapter 3 Gases MCQ`s Test

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 :

The molar value of CO₂is maximum at :