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Engineering

2 molal solution of a weak acid HA has a freezing point of 3.885°C. The degree of dissociation of this acid is ____ ×103\times 10^{-3}. (Round off to the Nearest Integer). [Given : Molal depression constant of water = 1.85 K kg mol1^{-1} Freezing point of pure water = 0°C]