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Q. The volume of the resulting solution obtained by mixing 25 ml of acetone and 25ml of $ CHC{{l}_{3}} $ will be:

JIPMERJIPMER 1996

Solution:

A mixture of chloroform and acetone shows negative deviation from Raoults law, as in this mixture A ... B attraction are greater than A ...A and B ... B attraction due to hydrogen bonding. Hence, $ \Delta {{V}_{mixing}}=-\,ve. $ Therefore the volume of resulting solution will be less than 50 ml (< (25 + 25) ml).

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