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NTA Abhyas NEET2020ChemistryIonic EquilibriumPractice

For solution of weak electrolytic , the degree of ionization

Options

  1. AWill be reciprocal to the dilution
  2. BWill be proportional to dilution
  3. CWill be proportional to the square root of dilution
  4. DWill be proportional to concentration of electrolyte

Correct answer

C. Will be proportional to the square root of dilution

Step-by-step solution

Ostwald’s dilution formula is α 2 = K ( 1 - α ) / C but for weak electrolyte α is very small. So that ( 1 - α ) is neglected for weak electrolytes. So for weak electrolyte the dilution formula is α = K C .

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