Assertion(A): Above critical temperature liquid phase does not exist. 
Reason(R): At critical temperature gas always shows non-ideal behaviour.

1. Both A and R are true and R is the correct explanation of A.
2. Both A and R are true but R is not the correct explanation of A.
3. A is true and R is false.
4. A and R both are false.
 
Subtopic:  Liquefaction of Gases & Liquid |
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh
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Given below are two statements: 

Assertion (A): Liquids tend to have a maximum number of molecules at their surface.
Reason (R): Small liquid drops have a spherical shape.


 

1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. (A) is false but (R) is true.


 

Subtopic:  Liquefaction of Gases & Liquid |
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh
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NEET 2023 - Target Batch - Aryan Raj Singh

Given below are two statements: 

Assertion (A): At the critical temperature, the liquid passes into a gaseous state imperceptible and continuously.
Reason (R): The density of the liquid and gaseous phase is equal to critical temperature.

1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. (A) is false but (R) is true.

Subtopic:  Liquefaction of Gases & Liquid |
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
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To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

Given below are two statements: 

Assertion (A): Gases do not liquefy above their critical temperature, even on applying high pressure.
Reason (R): Above the critical temperature, the molecular speed is high and intermolecular attractions cannot hold the molecules together because they escape because of high speed.

1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. (A) is false but (R) is true.

Subtopic:  Liquefaction of Gases & Liquid |
 84%
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh
Hints
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NEET 2023 - Target Batch - Aryan Raj Singh

Given below are two statements: 

Assertion (A): The temperature at which the vapor pressure of a liquid is equal to the external pressure is called boiling temperature.
Reason (R): At high altitudes atmospheric pressure is high.

1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. (A) is false but (R) is true.

Subtopic:  Liquefaction of Gases & Liquid |
 74%
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh
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NEET 2023 - Target Batch - Aryan Raj Singh

Assertion (A) Critical temperatures for carbon dioxide and methane are 31.1 °C and –81.9 °C  respectively.
Reason (R) The intermolecular forces of attraction are stronger in CO2 than CH4

 

1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. Both (A) and (R) are false.

Subtopic:  Liquefaction of Gases & Liquid |
 73%
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh
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NEET 2023 - Target Batch - Aryan Raj Singh

The variation of vapour pressure of different liquids with temperature is shown below:

Boiling points of liquids A and B are, respectively

1. 311 K and 374 K

2. 298 K and 353 K

3. 307 K and 337 K

4. Cannot be determined from the graph given above

Subtopic:  Liquefaction of Gases & Liquid |
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh