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The conductivity of an electrolytic solu...

The conductivity of an electrolytic solution decreases on dilution due to

A

decrease in number of ions per unit volume

B

increase in ionic mobility of ions

C

increase in percentage ionisation

D

increase in number of ions per unit volume

Text Solution

Verified by Experts

The correct Answer is:
D
Conductivity always decreases with decrease in concentration (i.e. with dilution) of both the strong and weak electrolytes. This is due to the fact that the number of ions that carry current in a volume of solution always decreases with decrease in concentration.
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Knowledge Check

  • Conductivity of an electrolytic solution depends on:

    A
    nature of electrolyte
    B
    concentration of electrlyte
    C
    power of AC source
    D
    distance between the electrodes

  • Statement-1: Specific conductivity of an electrolytic solution decreases with dilution whereas molar conductivity. Statement-2: Specific conductivity is the conductance of a specific amount of the electrolyte whereas molar conductivity is for 1 mole of the electrolyte.

    A
    Statement-1 is True, statement-2 is true, statement-2 is a correct explanation of statement-1
    B
    Statement-1 is true, statement-2 is true, statement-2 is not a correct explanation of statement-1.
    C
    Statement-1 is true, statemet-2 is false
    D
    Statement-1 is false, statement-2 is true

  • The conductivity of Electrolytic solution depends on-

    A
    Size of the ions produced and their solvation
    B
    The nature of the solvent and its viscosity
    C
    Temperature
    D
    All of the above

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    Give reason: (i) Rusting of iron pipe can be prevented by joining it with a piece of magnesium. (ii) Conductivity of an electrolyte solution decreases with the decrease in concentration.

    Assertion (A) Conductivity of all electrolytes decreases on dilution. Reason(R) On dilution number of ions per unit volume decreases.

    Conductance of an electrolytic solution depends :

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    Assertion: Conductivity of all electrolytes decreases on dilution. Reason: on dilution, number of ions per unit volume decreases.

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