ECAT Pre Engineering Chemistry Chapter 3 MCQ Test With Answer

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

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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Muhammad Abubakar 25 - Oct - 2024 14 Min 32 Sec 105/120
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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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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	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
2	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
3	The rate of diffusion of a gas in	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	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
5	For a gas obeying Boyle's law if pressure is doubled, the volume becomes	A. Remains constant B. Double C. One half D. None 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	Liquids are less common than :	A. Solids B. Plasmas C. Gases D. All of above
8	The intramolecular forces in gases are	A. Weak B. Normal C. Very weak D. Strong
9	Gases deviate from ideal behavior at high pressure. Which of the following is correct for non-ideality ?	A. At high pressure, the gas molecules move in one direction only. B. At high pressure, the collisions between the gas molecules are increased manifold. C. At high pressure, the volume of gas becomes insignificant. D. At high pressure, the inter molecular attraction become significant.
10	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

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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 exert pressure on walls of container because the gas molecules :

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

Gases exert pressure on walls of container because the gas molecules

Liquids are less common than :

In Solids, the temperature is the measure of

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

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

Gases show uniform behaviour towards their

Boyle's law does not fall even

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

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

The rate of diffusion of a gas in

In solids, the temperature of is the measure of

Cooling happens under the Joule Thomson Effect due to sudden :

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

Absolute temperature of a gas is proportional to

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

The rate of diffusion of a gas is :

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

Which of the following is the simplest form of matter?

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

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

The intramolecular force in gases are :

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

Cooling happens under the Joule Thomson Effect due to sudden

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

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

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

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

Liquids are less common than

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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 :