For a weak acid with very small dissociation, the degree of dissociation alpha varies with concentration c as
Adirectly as c itself
Binversely as root of c
Cinversely as c squared
Dindependent of c value
Answer & Solution
Correct answer: B. inversely as root of c
Since Ka = alpha squared x c, alpha equals the square root of Ka/c, inversely proportional to the square root of c.
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