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Why does conductivity of a solution decr...

Why does conductivity of a solution decrease on dilution of the solution ?

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Conductivity always decreases with decrease in concetration (on dilution of the solution) both for weak as much as for strong electrolytes. It is because the number of ions per unit volume that carry the current is a solution decreases on dilution.
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Knowledge Check

  • Consider the following statements: (i) If the temperature of the electrolytic solution increases, conductance decreases. (ii) Conductivity increases with the decrease in viscosity . (iii) Molar conductance of a solution decreases with increase in dilution. Which of the above statement is l are not correct ?

    A
    i & iii
    B
    i and iii
    C
    iii only
    D
    ii only

  • Assertion (A) : Molar conductance of a solution increases with increase in dilution. Reason (R) : For a strong electrolyte, inter ionic force of attraction decreases with dilution and so conductivity increases. For a weak electrolyte, degree of dissociation increases with dilution and coductivity increases.

    A
    Both A and R are correct and R is the correct explanation of A
    B
    Both A and R are wrong
    C
    A is correct but R is wrong
    D
    A is wrong but R is correct

  • Consider the following statement : (i) Solvent of higher dielectric constant show very low conductance in solution. (ii) Conductance is directly proportional to viscosity of the medium . (iii) Molar conductance of a solution increases with increase in dilution. Which of the above statement is l are correct ?

    A
    i & ii
    B
    ii and iii
    C
    iii only
    D
    i only

    • Similar Questions

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    For strong electrolytes the molar conductivity increases on dilution and reaches a maximum value at infinite dilution. Justify this statement.

    A solution has pH=3. If its hydrogen ion concentration is decreased 1000 times, the pH of the solution will be

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