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CUET

Q6. 20 g of binary electrolyte (Molecular mass = 100) are dissolved in 500 g of water. The freezing point of the solution is -0.74°C and kf is 1.86 K kg mol-1. The degree of ionisation of electrolyte is: (a) 0.5 (b) 0.75 (c) 1.0 (d) 0.0