03. Degree of Dissociation
Chemical Equilibrium

229129 Assertion (A) The aqueous solution of $\mathrm{CH}_{3} \mathrm{COONa}$ is alkaline in nature.
Reason (R) : Acetate ion undergoes anionic hydrolysis.
The correct answer is

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

229130 The equilibrium constants $K_{p_{1}}$ and $K_{p_{2}}$ for the
reactions $X \rightleftharpoons 2Y$ and $Z \rightleftharpoons P+ Q$
respectively are in the ratio of $1: 9$. If the degree of dissociation of $X$ and $Z$ be equal, then the ratio of total pressure at these equilibria is

1 $1: 36$
2 $1: 1$
3 $1: 3$
4 $1: 9$
Chemical Equilibrium

229131 An acid solution of $0.005 \mathrm{M}$ has a $\mathrm{pH}$ of 5 . The degree of ionization of acid is

1 $0.1 \times 10^{-2}$
2 $0.2 \times 10^{-2}$
3 $0.5 \times 10^{-4}$
4 $0.6 \times 10^{-6}$
Chemical Equilibrium

229133 A 2.1 aqueous solution of a weak acid is $2 \%$ ionised. If the ionic product of water is $1 \times 10^{-14}$ The $\left[\mathrm{OH}^{-}\right]$is;

1 $5 \times 10^{-12} \mathrm{M}$
2 $2 \times 10^{-3} \mathrm{M}$
3 $1 \times 10^{-14} \mathrm{M}$
4 None of the above
Chemical Equilibrium

229134 HA is a weak acid. The $\mathrm{pH}$ of $0.1 \mathrm{M} H \mathrm{HA}$ solution is 2 . What is the degree of dissociation $(\alpha)$ of HA?

1 0.5
2 0.2
3 0.1
4 0.301
Chemical Equilibrium

229129 Assertion (A) The aqueous solution of $\mathrm{CH}_{3} \mathrm{COONa}$ is alkaline in nature.
Reason (R) : Acetate ion undergoes anionic hydrolysis.
The correct answer is

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

229130 The equilibrium constants $K_{p_{1}}$ and $K_{p_{2}}$ for the
reactions $X \rightleftharpoons 2Y$ and $Z \rightleftharpoons P+ Q$
respectively are in the ratio of $1: 9$. If the degree of dissociation of $X$ and $Z$ be equal, then the ratio of total pressure at these equilibria is

1 $1: 36$
2 $1: 1$
3 $1: 3$
4 $1: 9$
Chemical Equilibrium

229131 An acid solution of $0.005 \mathrm{M}$ has a $\mathrm{pH}$ of 5 . The degree of ionization of acid is

1 $0.1 \times 10^{-2}$
2 $0.2 \times 10^{-2}$
3 $0.5 \times 10^{-4}$
4 $0.6 \times 10^{-6}$
Chemical Equilibrium

229133 A 2.1 aqueous solution of a weak acid is $2 \%$ ionised. If the ionic product of water is $1 \times 10^{-14}$ The $\left[\mathrm{OH}^{-}\right]$is;

1 $5 \times 10^{-12} \mathrm{M}$
2 $2 \times 10^{-3} \mathrm{M}$
3 $1 \times 10^{-14} \mathrm{M}$
4 None of the above
Chemical Equilibrium

229134 HA is a weak acid. The $\mathrm{pH}$ of $0.1 \mathrm{M} H \mathrm{HA}$ solution is 2 . What is the degree of dissociation $(\alpha)$ of HA?

1 0.5
2 0.2
3 0.1
4 0.301
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Chemical Equilibrium

229129 Assertion (A) The aqueous solution of $\mathrm{CH}_{3} \mathrm{COONa}$ is alkaline in nature.
Reason (R) : Acetate ion undergoes anionic hydrolysis.
The correct answer is

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

229130 The equilibrium constants $K_{p_{1}}$ and $K_{p_{2}}$ for the
reactions $X \rightleftharpoons 2Y$ and $Z \rightleftharpoons P+ Q$
respectively are in the ratio of $1: 9$. If the degree of dissociation of $X$ and $Z$ be equal, then the ratio of total pressure at these equilibria is

1 $1: 36$
2 $1: 1$
3 $1: 3$
4 $1: 9$
Chemical Equilibrium

229131 An acid solution of $0.005 \mathrm{M}$ has a $\mathrm{pH}$ of 5 . The degree of ionization of acid is

1 $0.1 \times 10^{-2}$
2 $0.2 \times 10^{-2}$
3 $0.5 \times 10^{-4}$
4 $0.6 \times 10^{-6}$
Chemical Equilibrium

229133 A 2.1 aqueous solution of a weak acid is $2 \%$ ionised. If the ionic product of water is $1 \times 10^{-14}$ The $\left[\mathrm{OH}^{-}\right]$is;

1 $5 \times 10^{-12} \mathrm{M}$
2 $2 \times 10^{-3} \mathrm{M}$
3 $1 \times 10^{-14} \mathrm{M}$
4 None of the above
Chemical Equilibrium

229134 HA is a weak acid. The $\mathrm{pH}$ of $0.1 \mathrm{M} H \mathrm{HA}$ solution is 2 . What is the degree of dissociation $(\alpha)$ of HA?

1 0.5
2 0.2
3 0.1
4 0.301
Chemical Equilibrium

229129 Assertion (A) The aqueous solution of $\mathrm{CH}_{3} \mathrm{COONa}$ is alkaline in nature.
Reason (R) : Acetate ion undergoes anionic hydrolysis.
The correct answer is

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

229130 The equilibrium constants $K_{p_{1}}$ and $K_{p_{2}}$ for the
reactions $X \rightleftharpoons 2Y$ and $Z \rightleftharpoons P+ Q$
respectively are in the ratio of $1: 9$. If the degree of dissociation of $X$ and $Z$ be equal, then the ratio of total pressure at these equilibria is

1 $1: 36$
2 $1: 1$
3 $1: 3$
4 $1: 9$
Chemical Equilibrium

229131 An acid solution of $0.005 \mathrm{M}$ has a $\mathrm{pH}$ of 5 . The degree of ionization of acid is

1 $0.1 \times 10^{-2}$
2 $0.2 \times 10^{-2}$
3 $0.5 \times 10^{-4}$
4 $0.6 \times 10^{-6}$
Chemical Equilibrium

229133 A 2.1 aqueous solution of a weak acid is $2 \%$ ionised. If the ionic product of water is $1 \times 10^{-14}$ The $\left[\mathrm{OH}^{-}\right]$is;

1 $5 \times 10^{-12} \mathrm{M}$
2 $2 \times 10^{-3} \mathrm{M}$
3 $1 \times 10^{-14} \mathrm{M}$
4 None of the above
Chemical Equilibrium

229134 HA is a weak acid. The $\mathrm{pH}$ of $0.1 \mathrm{M} H \mathrm{HA}$ solution is 2 . What is the degree of dissociation $(\alpha)$ of HA?

1 0.5
2 0.2
3 0.1
4 0.301
Chemical Equilibrium

229129 Assertion (A) The aqueous solution of $\mathrm{CH}_{3} \mathrm{COONa}$ is alkaline in nature.
Reason (R) : Acetate ion undergoes anionic hydrolysis.
The correct answer is

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

229130 The equilibrium constants $K_{p_{1}}$ and $K_{p_{2}}$ for the
reactions $X \rightleftharpoons 2Y$ and $Z \rightleftharpoons P+ Q$
respectively are in the ratio of $1: 9$. If the degree of dissociation of $X$ and $Z$ be equal, then the ratio of total pressure at these equilibria is

1 $1: 36$
2 $1: 1$
3 $1: 3$
4 $1: 9$
Chemical Equilibrium

229131 An acid solution of $0.005 \mathrm{M}$ has a $\mathrm{pH}$ of 5 . The degree of ionization of acid is

1 $0.1 \times 10^{-2}$
2 $0.2 \times 10^{-2}$
3 $0.5 \times 10^{-4}$
4 $0.6 \times 10^{-6}$
Chemical Equilibrium

229133 A 2.1 aqueous solution of a weak acid is $2 \%$ ionised. If the ionic product of water is $1 \times 10^{-14}$ The $\left[\mathrm{OH}^{-}\right]$is;

1 $5 \times 10^{-12} \mathrm{M}$
2 $2 \times 10^{-3} \mathrm{M}$
3 $1 \times 10^{-14} \mathrm{M}$
4 None of the above
Chemical Equilibrium

229134 HA is a weak acid. The $\mathrm{pH}$ of $0.1 \mathrm{M} H \mathrm{HA}$ solution is 2 . What is the degree of dissociation $(\alpha)$ of HA?

1 0.5
2 0.2
3 0.1
4 0.301