States of Matter's Question 43 | Chemistry XI - Part 1 | NCERT Exemplar Questions

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Subjective

Match the following graphs of ideal gas with their coordinates.

		X and Y coordinates
A.	1.	$$pV$$ vs. $$V$$
B.	2.	$$p$$ vs. $$V$$
C.	3.	$$p$$ vs. $$\frac{1}{V}$$

Explanation

A. $\rightarrow(2)$

B. $\rightarrow$ (3)

C. $\rightarrow$ (1)

MCQ (Single Correct Answer)

Assertion (A) Three states of matter are the result of balance between intermolecular forces and thermal energy of the molecules.

Reason (R) Intermolecular forces tend to keep the molecules together but thermal energy of molecules tends to keep them apart.

Both $A$ and $R$ are true and $R$ is the correct explanation of $A$

Both $A$ and $R$ are true but $R$ is not the correct explanation of $A$

$A$ is true but $R$ is false

$A$ is false but $R$ is true

MCQ (Single Correct Answer)

Assertion (A) At constant temperature, $p V v s V$ plot for real gases is not a straight line.

Reason (R) At high pressure all gases have $Z>1$ but at intermediate pressure most gases have $Z<1$.

Both $A$ and $R$ are true and $R$ is the correct explanation of $A$

Both $A$ and $R$ are true but $R$ is not the correct explanation of $A$

$A$ is true but $R$ is false

$A$ is false but $R$ is true

MCQ (Single Correct Answer)

Assertion (A) The temperature at which vapour pressure of a liquid is equal to the external pressure is called boiling temperature.

Reason (R) At high altitude atmospheric pressure is high.

Both $A$ and $R$ are true and $R$ is the correct explanation of $A$

Both $A$ and $R$ are true but $R$ is not the correct explanation of $A$

A is true but R is false

$A$ is false but $R$ is true

MCQ (Single Correct Answer)

Assertion (A) Gases do not liquefy above their critical temperature, even on applying high pressure.

Reason (R) Above critical temperature, the molecular speed is high and intermolecular attractions cannot hold the molecules together because they escape because of high speed.

Both $A$ and $R$ are true and $R$ is the correct explanation of $A$

Both $A$ and $R$ are true but $R$ is not the correct explanation of $A$

$A$ is true but $R$ is false

$A$ is false but $R$ is true

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