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CHXI07:EQUILIBRIUM

314416 Assertion :
Relative strength of acids can be known by knowing the value of dissociation constant.
Reason :
It gives the value of $H^{+}$ dissolved in solution.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.

2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.

3 Assertion is correct but Reason is incorrect.

4 Assertion is incorrect but Reason is correct.

Explanation:

$HA ⇌ H^{+} + A^{-}$
Dissociation constant for this reaction can be given as :
$K_{a} = \frac{[H^{+}] [A^{-}]}{[HA]}$
Therefore, we can say that dissociation constant is a measure of its ability to furnish protons in the solution. Therefore, reason explains the assertion and option (1) is correct.

CHXI07:EQUILIBRIUM

314417 In aqueous solution, $HCl$ and ${HNO}_{3}$ are equally strong. This is because

1 Their basicities are same

2 Both are oxy acids of non-metals

3 Both have lower molecular weights

4 Levelling effect of water

CHXI07:EQUILIBRIUM

314418 Among the following relatively strong base is

1

{HSO}_{4}^{-}

2

{NO}_{3}^{-}

3

C H_{3} C O O^{-}

4

{Cl}^{-}

Explanation:

$\begin{matrix} C H_{3} CO O^{-} + H^{+} \to C H_{3} COOH \\ Strong base Weak acid \end{matrix}$
Acid is weak but conjugate base is strong

CHXI07:EQUILIBRIUM

314419 Conjugate base of ${HSO}_{4}^{-}$ is

1

H_{2} {SO}_{4}

2

H_{2} {SO}_{4}^{-}

3

{SO}_{4}^{2 -}

4

H^{+}

Explanation:

Acid donate one $H^{+}$ to form conjugate base.

CHXI07:EQUILIBRIUM

314416 Assertion :
Relative strength of acids can be known by knowing the value of dissociation constant.
Reason :
It gives the value of $H^{+}$ dissolved in solution.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.

2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.

3 Assertion is correct but Reason is incorrect.

4 Assertion is incorrect but Reason is correct.

Explanation:

$HA ⇌ H^{+} + A^{-}$
Dissociation constant for this reaction can be given as :
$K_{a} = \frac{[H^{+}] [A^{-}]}{[HA]}$
Therefore, we can say that dissociation constant is a measure of its ability to furnish protons in the solution. Therefore, reason explains the assertion and option (1) is correct.

CHXI07:EQUILIBRIUM

314417 In aqueous solution, $HCl$ and ${HNO}_{3}$ are equally strong. This is because

1 Their basicities are same

2 Both are oxy acids of non-metals

3 Both have lower molecular weights

4 Levelling effect of water

CHXI07:EQUILIBRIUM

314418 Among the following relatively strong base is

1

{HSO}_{4}^{-}

2

{NO}_{3}^{-}

3

C H_{3} C O O^{-}

4

{Cl}^{-}

Explanation:

$\begin{matrix} C H_{3} CO O^{-} + H^{+} \to C H_{3} COOH \\ Strong base Weak acid \end{matrix}$
Acid is weak but conjugate base is strong

CHXI07:EQUILIBRIUM

314419 Conjugate base of ${HSO}_{4}^{-}$ is

1

H_{2} {SO}_{4}

2

H_{2} {SO}_{4}^{-}

3

{SO}_{4}^{2 -}

4

H^{+}

Explanation:

Acid donate one $H^{+}$ to form conjugate base.

CHXI07:EQUILIBRIUM

314416 Assertion :
Relative strength of acids can be known by knowing the value of dissociation constant.
Reason :
It gives the value of $H^{+}$ dissolved in solution.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.

2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.

3 Assertion is correct but Reason is incorrect.

4 Assertion is incorrect but Reason is correct.

Explanation:

$HA ⇌ H^{+} + A^{-}$
Dissociation constant for this reaction can be given as :
$K_{a} = \frac{[H^{+}] [A^{-}]}{[HA]}$
Therefore, we can say that dissociation constant is a measure of its ability to furnish protons in the solution. Therefore, reason explains the assertion and option (1) is correct.

CHXI07:EQUILIBRIUM

314417 In aqueous solution, $HCl$ and ${HNO}_{3}$ are equally strong. This is because

1 Their basicities are same

2 Both are oxy acids of non-metals

3 Both have lower molecular weights

4 Levelling effect of water

CHXI07:EQUILIBRIUM

314418 Among the following relatively strong base is

1

{HSO}_{4}^{-}

2

{NO}_{3}^{-}

3

C H_{3} C O O^{-}

4

{Cl}^{-}

Explanation:

$\begin{matrix} C H_{3} CO O^{-} + H^{+} \to C H_{3} COOH \\ Strong base Weak acid \end{matrix}$
Acid is weak but conjugate base is strong

CHXI07:EQUILIBRIUM

314419 Conjugate base of ${HSO}_{4}^{-}$ is

1

H_{2} {SO}_{4}

2

H_{2} {SO}_{4}^{-}

3

{SO}_{4}^{2 -}

4

H^{+}

Explanation:

Acid donate one $H^{+}$ to form conjugate base.

CHXI07:EQUILIBRIUM

314416 Assertion :
Relative strength of acids can be known by knowing the value of dissociation constant.
Reason :
It gives the value of $H^{+}$ dissolved in solution.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.

2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.

3 Assertion is correct but Reason is incorrect.

4 Assertion is incorrect but Reason is correct.

Explanation:

$HA ⇌ H^{+} + A^{-}$
Dissociation constant for this reaction can be given as :
$K_{a} = \frac{[H^{+}] [A^{-}]}{[HA]}$
Therefore, we can say that dissociation constant is a measure of its ability to furnish protons in the solution. Therefore, reason explains the assertion and option (1) is correct.

CHXI07:EQUILIBRIUM

314417 In aqueous solution, $HCl$ and ${HNO}_{3}$ are equally strong. This is because

1 Their basicities are same

2 Both are oxy acids of non-metals

3 Both have lower molecular weights

4 Levelling effect of water

CHXI07:EQUILIBRIUM

314418 Among the following relatively strong base is

1

{HSO}_{4}^{-}

2

{NO}_{3}^{-}

3

C H_{3} C O O^{-}

4

{Cl}^{-}

Explanation:

$\begin{matrix} C H_{3} CO O^{-} + H^{+} \to C H_{3} COOH \\ Strong base Weak acid \end{matrix}$
Acid is weak but conjugate base is strong

CHXI07:EQUILIBRIUM

314419 Conjugate base of ${HSO}_{4}^{-}$ is

1

H_{2} {SO}_{4}

2

H_{2} {SO}_{4}^{-}

3

{SO}_{4}^{2 -}

4

H^{+}

Explanation:

Acid donate one $H^{+}$ to form conjugate base.