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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Muhammad Abubakar 25 - Oct - 2024 14 Min 32 Sec 105/120
A

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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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

ECAT Chemistry Chapter 3 Important MCQ's

Sr.#	Question	Answer
1	Cooling happens under the Joule Thomson Effect due to sudden	A. Contraction B. Absorption C. Expansion D. All of above
2	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
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	Liquids are less common than	A. Solids B. Plasmas C. Gases D. All of above
5	In solids, the temperature of is the measure of	A. Rotational kinetic energies B. transnational kineticenergies C. Vibrationalkineticenergies D. None of the above
6	In Solids, the temperature is the measure of	A. Rotational kinetic energies B. Translational kinetic energies C. Vibrational kinetic energies D. None of above
7	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
8	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
9	The deviation of a gas from ideal behavior is maximum at :	A. -10°C and 5.0 atm B. -10°C and 2.0 atm C. 100°C and 2.0 atm D. 0°C and 2.0 atm
10	The intramolecular forces in gases are	A. Weak B. Normal C. Very weak D. Strong

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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

Boyle's law doesn't fail even :

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

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

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

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

In gases and liquids, temperature is the measure of :

The intramolecular force in gases are :

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

Gases show uniform behaviour towards their

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

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

All gases can be compressed by

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

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

Boyle's law is represented as :

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

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

Gases shows uniform behavior toward their :

A real gas obeying van der Waals' equation will resemble ideal gas if :

Boyle's law does not fall even

Liquids are less common than

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

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

The rate of diffusion of a gas is :

Cooling happens under the Joule Thomson Effect due to sudden :

Which Statement about gases is not correct?

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

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

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

A graph between P and PV at constant temperature and number of mole 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 :