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Question

At a particular temperature, the ratio of equivalent conductance to specific conductance of a 0.01 N NaCl solution is:

A

105cm3 equiv1

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B

103cm3 equiv1

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C

10 cm3 equiv1

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D

102cm3 equiv1

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Solution

The correct option is A

105cm3 equiv1


Equivalent conductance is the conductivity of a solution containing 1 g-equivalent of the electrolyte.

Λeq=κ V
V is volume of solution containing 1 gequiv

Normality of solutionN
N gequiv of solute present in 1 L solution

1 gequiv of solute present in 1N L solution

Λeq=κN (when volume in litres)

Λeq=κ×1000N (when volume in cm3)

Λeqκ=1000N

Λeqκ=10000.01=105cm3 equiv1

At a particular temperature, the ratio of equivalent conductance to specific conductance of a 0.01 NaCl solution is 105cm3 equiv1


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