At 25 C molar conductance of 0.1 molar aqueous solution of ammonium hydroxide is 9.54 ohm -1 cm 2 mol -1 and at infinite dilution its molar conductance is 238 ohm -1 cm 2 mol -1 . The degree of ionisation of ammonium hydroxide at the same concentration and temperature is

1. A. 2.080%
2. B. 20.800%
3. C. 4.008%
4. D. 40.800%

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