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Viscosities (ƞ) of solutions of 1- propanol and 2-propanol have been determined in aqueous systems of varying composition (0.16-3.64 mol dm-3) at 298 K. The ƞ/ƞ0 data have been analyzed in the light of reduced Jone-Dole equation ƞ/ƞ0 = BC+1. The results in the regards to solute-solvent interaction in aqueous solutions of both the alcohols have been discussed in the terms of the value B. The result of study reveals that both the alcohols behave as the structure makers in the water. The result shows that solute-solvent type interaction of same magnitude exists in water-alcohol system.

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