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  • What will happen to the degree of dissociation of  if <img alt="\mathrm{H

What will happen to the degree of dissociation of \mathrm{CH_3COOH} if \mathrm{HCl} is added to the solution?

Option: 1

It will increase because of the common ion


Option: 2

It will decrease because of the common ion


Option: 3

It will remain the same as HCl is a strong acid


Option: 4

It will first increase and then decrease


Answers (1)

best_answer

\mathrm{CH_3COOH \rightleftharpoons CH_3COO^- + H^+}

\mathrm{HCl \longrightarrow H^+ + Cl^-}

As HCl is a strong acid, it will produce \mathrm{ H^+ } ions which will cause the dissociation equilibrium of \mathrm{ CH_3COOH} to shift in the backward direction.

Hence, the degree of dissociation of \mathrm{ CH_3COOH} will decrease.

Thus, the correct answer is Option (2)

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Sayak

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