Question

Ostwald’s dilution law is applicable to only

• A. strong electrolytes
• B. solute
• C. weak electrolytes
• D. solvent.

Answer 1

Answer: (C)

According to Ostwald's dilution law, the degree of dissociation of a

weak electrolyte is proportional to the square root of dilution.

$\alpha =\sqrt{\frac{K}{C}}$

$\alpha =$ degree of dissociation,

$C=$ concentration

$K=$ Equilibrium constant (dissociation)