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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kayani 17 - Jul - 2024 07 Min 39 Sec 95/120
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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 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
3	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
4	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
5	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
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	Number of molecules in one dm³of water is close to :	A. 6.02/22.4 B. 12.04/22.4 10²³ C. 18/22.410²³ D. 55.66.0210²³* 10²³
8	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.
9	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
10	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

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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

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

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

Which of the following is the simplest form of matter?

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

In solids, the temperature of is the measure of

The rate of diffusion of a gas is :

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 :

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 :

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

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

Liquids are less common than :

The ratio of volume to temperature on Kelvin scale is constant according to

Absolute temperature of a gas is proportional to

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

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

The intramolecular forces in gases are

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

In Solids, the temperature is the measure of

Liquids are less common than

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

The molar value of CO2 is maximum at :

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

Gases show uniform behaviour towards their

In gases and liquids, temperature is the measure of

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

Boyle's law is represented as :

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

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

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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 :

The molar value of CO₂is maximum at :