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Question

If the molar conductivities (in S cm2 mol1) of NaCl, KCl and NaOH at infinite dilution are 126, 150 and 250 respectively, the molar conductivity of KOH is:

[in S cm2 mol1]

A
526
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B
226
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C
26
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D
274
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Solution

The correct option is D 274
λKOH =λKCl +λNaOH λNaCl

λKOH=150+250126=274 S cm2 mol1

Hence, the correct option is D

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