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Byju's Answer

Standard XII

Chemistry

Common Ion Effect

For the react...

Question

For the reaction given below, identify the correct statement(s):
$H C l + H_{2} O \to H_{3} O^{+} + C l^{-}$

H C l

is a strong acid.

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H_{3} O^{+}

is a weak acid.

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H_{2} O

is a strong base.

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C l^{-}

is a weak base.

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Solution

The correct options are
A $H_{2} O$ is a strong base.
B $C l^{-}$ is a weak base.
C $H C l$ is a strong acid.
D $H_{3} O^{+}$ is a weak acid.

Conjugate base of a strong acid is weak base and vice versa for conjugate acid.

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Similar questions

Q. Identify the correct statement(s) for the given reaction.

H C l + H_{2} O \to H_{3} O^{+} + C l^{-}

a) Conjugate base of

H C l

C l^{-}

b) Conjugate acid-base pair is

H_{3} O^{+}

and

H_{2} O

c) Conjugate base of

H_{2} O

H_{3} O^{+}

d) Conjugate acid-base pair is

H C l

and

H_{3} O^{+}

Q. Assertion :An aqueous solution of

N H_{4} C l

changes blue litmus to red. Reason:

N H_{3}

is a weak base,

H C l

is a strong acid.

Q. Conjugate base of

H C l

in the following reaction is:

H C l (a q) + H_{2} O \to C l^{-} (a q) + H_{3} O^{+}

Question 05.
Sodium carbonate is a basic salt because it is a salt of
(a) strong acid and strong base
(b) weak acid and weak base
(c) strong acid and weak base
(d) weak acid and strong base

Q. Given that the data for neutralization of a weak acid

(H A)

and strong acid with a strong base is:

H A + O H^{-} \to A^{-} + H_{2} O; △ H = - 41.80 k J

H^{+} + O H^{-} \to H_{2} O; △ H = - 55.90 k J

The enthalpy of dissociation of weak and would be:

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For the reaction given below, identify the correct statement(s):HCl+H2O→H3O++Cl−

The correct options are A H2O is a strong base. B Cl− is a weak base. C HCl is a strong acid. D H3O+ is a weak acid.Conjugate base of a strong acid is weak base and vice versa for conjugate acid.

For the reaction given below, identify the correct statement(s):
$H C l + H_{2} O \to H_{3} O^{+} + C l^{-}$

The correct options are
A $H_{2} O$ is a strong base.
B $C l^{-}$ is a weak base.
C $H C l$ is a strong acid.
D $H_{3} O^{+}$ is a weak acid.

Conjugate base of a strong acid is weak base and vice versa for conjugate acid.