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Question

Equivalent conductance of an electrolyte containing NaF at infinite dilution is 90.1 Ohm−1cm2. If NaF is replaced by KF what is the value of equivalent conductance?

A
90.1 Ohm1cm2
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B
11.2 Ohm1cm2
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C
0
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D
222.4 Ohm1cm2
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Solution

The correct option is A 90.1 Ohm1cm2
At infinite dilution the equivalent conductance of strong electrolytes furnishing same number of ions is same.
For this case, Both NaF and KF are strong electrolyte and also furnish 2 ions in the solution.
Hence, Both will have same equivalent conductance.
So, option A is correct.

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