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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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 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
2	Gases show uniform behaviour towards their	A. Internal conditions B. External conditions C. Internal and external conditions D. None of above
3	The movement of molecules from a region of high pressure to vacuum is called :	A. Evaporation B. Effusion C. Conduction D. Difusion
4	Which statement about gases is not correct ?	A. The spread throughout the vessel. B. Pressure is due to collision C. There are large spaces between the molecules. D. molecules are arranged regularly.
5	A graph between P and 1/V at constant temperature and number moles of a gas meets the	A. y-axis B. x-axis C. origin D. none of above
6	The relationships between volume of a given amount of gas and the prevailing conditions of temperature and pressure are	A. Charle's Law B. Graham's Law C. Boyle's Law D. Gas Laws
7	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
8	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
9	A graph b/w P and 1/V at constant temperature and number of moles is parallel to :	A. Y-axis B. Z-axis C. X-axis D. None of above
10	The ratio of volume to temperature on Kelvin scale is constant according to	A. Charle's law B. Newton's law C. Coulomb's law D. Boyle's law

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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 does not fall even

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

Cooling happens under the Joule Thomson Effect due to sudden

Liquids are less common than

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

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

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

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

All gases can be compressed by

The intramolecular force in gases are :

Gases exert pressure on walls of container because the gas molecules

Which of the following is the simplest form of matter?

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

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

Keeping the temperature constant, if the gas is expanded

Pressure remaining constant, at which temperature volume of gas will become twice of what it is at 0°C ?

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

Absolute temperature of a gas is proportional to

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

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

Liquids are less common than :

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

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

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

Which statement about gases is not correct ?

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

In gases and liquids, temperature is the measure of

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

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

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

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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 :