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The strength of elctrolytes is expressed...

The strength of elctrolytes is expressed in terms of degree of dissociation `alpha` For strong electrolyte `alpha` is close to one and for weak electrolytes `alpha` is quite small. According to Ostwald Dilution Law `alpha=sqrt((K)/(C))`
For an acid `[H^(+)] = sqrt(K_(a)C)`
For a base `[OH^(-)] =sqrt(K_(b)C`
The relative strengths of acids or bases can be compared in terms of the square roots of their `K_(a) " or " K_(b)` values.
At infinite dilution , the percentage ionisation of both strong and weak electrolytes is :

A

`1%`

B

`20%`

C

`50%`

D

`100%`

Text Solution

Verified by Experts

The correct Answer is:
D
Both strong and weak acids are almost completely ionised at infinite dilution.
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