The molar conductance of NH4OH at 0.01M concentration is 11.3 ohm−1cm2mol−1. The degree of dissociation of NH4OH is (molar conductance at infinite dilution is 271.1)
A
4.2%
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B
1.3%
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C
12.6%
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D
41%
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Solution
The correct option is A4.2% α=11.3271.1 = 0.042 or 4.2 %