Select the correct statement (s) from the following-

Chemistry Ionic Equilibrium Acids and Bases Single Correct MCQ

Published on: August 12, 2026

For the the weak acid HA, if α <<1 then α is inversely proportional to concentration HA, where α stands for degree of dissociation of HA

For the weak acid HA, If α <<1, then α is inversely proportional to concentration of HA, where α stands for degree of dissociation of HA

For the iso hydric solution of two weak acids HA and HB the initial concentrations before mixing must be equal

In acid buffer solution containing weak acid HA & salt of A – , excess of HA present in the system reduces the extent of hydrolysis of A –

Text Solution

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The correct answer is:

CHECK THE SOLUTION.

(b, d)

HA H + + A – Ka =

C(1 – α ) C α C α

Since α <<1 , hence α = =

A – + H 2 O HA + OH –

Excess of HA present in the system reduces the

hydrolysis of HA.

For isohydric solution of two weak acid initial

concentration of H + must be equal.

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