Question

Which of the following is correct ?

• A. Conductivity of a solution decreases with dilution, whereas molar conductivity increases with dilution
• B. Conductivity of a solution increases with dilution , whereas molar conductivity decreases with dilution
• C. Both conductivity and molar conductivity decrease with dilution
• D. Both conductivity and molar conductivity increase with Dilution

Answer 1

Answer: (A)

Conductivity of a solution decreases with dilution,

whereas molar conductivity increases with dilution

Answer 2

Conductivity of a solution decreases with dilution due to decrease in concentration of the electrolyte. On the otherhand, molar conductivity increases because of more ionisation of weak electrolyte or decrease in interactions between ions of a strong electrolyte.