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(u) u ul wese 44. The molar ionic conductivities of NH - and OH- at infinite dilution are 72 and 198 ohm-1 cm respectively. The molar conductivity of a centi- normal NH OH solution at the same tempera- ture is found to be 9 ohm-cm2. The percentage dissociation of NH OH at this concentration will be (a) 3.33% (b) 7.14% (c) 12.5% (d) 4.54%

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