ECAT Pre Engineering Chemistry Chapter 3 MCQ Test With Answer

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

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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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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	The molar value of CO₂is maximum at :	A. STP B. 127°C and 1 atm C. 0°C and 2 atm D. 273°C and 2 atm
2	Cooling happens under the Joule Thomson Effect due to sudden	A. Contraction B. Absorption C. Expansion D. All of above
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	Pressure remaining constant, at which temperature volume of gas will become twice of what it is at 0°C ?	A. 546 B. 200 C. 546K D. 273K
5	Which Statement about gases is not correct?	A. They spread throughout the vessel B. Pressure is due to collision C. There are larger spaces between the molecules D. Molecules are arranged regularly
6	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
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 Boyle's law which of the following pair remains constant :	A. Temperature and quality of a gas. B. Pressure and quality of a gas. C. Temperature and pressure D. Temperature and quantity of a gas.
9	The intramolecular forces in gases are	A. Weak B. Normal C. Very weak D. Strong
10	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.

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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

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

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

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

Absolute temperature of a gas is proportional to

In gases and liquids, temperature is the measure of

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

In gases and liquids, temperature is the measure of :

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

In Solids, the temperature is the measure of

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

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

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

Gases shows uniform behavior toward their :

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

Which statement about gases is not correct ?

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

Cooling happens under the Joule Thomson Effect due to sudden :

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

The intramolecular force in gases are :

The intramolecular forces in gases are

Gases show uniform behaviour towards their

All gases can be compressed by

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 :

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

Cooling happens under the Joule Thomson Effect due to sudden

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

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

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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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Number of molecules in one dm³of water is close to :

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