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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Fatima Tabassum 11 - Jan - 2025 02 Min 30 Sec 115/120
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kayani 17 - Jul - 2024 07 Min 39 Sec 95/120
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Laiba Jawad 21 - Sep - 2024 07 Min 29 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	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
3	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
4	Which of the following will have the same number of molecules at STP ?	A. 280 CM³ of CO² and 280 CM³ of N₂O B. 11.2 dm3 of O₂ and 32 g of O₂ C. 44 g of CO₂ and 11.2 dm³ of CO D. 28 g of N2 and 5.6 dm³ of oxygen
5	Gases show uniform behaviour towards their	A. Internal conditions B. External conditions C. Internal and external conditions D. None of above
6	All gases can be compressed by	A. Keeping constant pressure B. Decreasing pressure C. Increasing pressure D. None of above
7	Boyle's law is represented as :	A. P∞ 1/T B. V and 1/P C. P∞P D. P∞1/P
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	According to Boyle's law, which parameters give a straight line parallel to axis-s, when we plot a graph between:	A. V and T B. P and V C. P and 1/V D. P and PV
10	Boyle's law does not fall even	A. Temperature is extremely high B. Pressure is extremely high C. Mixture of gases is taken 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

In Solids, the temperature is the measure of

In gases and liquids, temperature is the measure of :

Cooling happens under the Joule Thomson Effect due to sudden

Which statement about gases is not correct ?

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

Gases show uniform behaviour towards their

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

The intramolecular forces in gases are

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

The intramolecular force in gases are :

In gases and liquids, temperature is the measure of

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

All gases can be compressed by

Boyle's law is represented as :

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

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

All gases can be compressed by :

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

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

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

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

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

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

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

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

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

The rate of diffusion of a gas in

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

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

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

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ECAT Chemistry Chapter 3 Important MCQ's

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Number of molecules in one dm³of water is close to :