A solution of acetone in ethnol...

A solution of acetone in ethnol

obeys Raoult's law

shows a negative deviation from Raoult's law

shows a positive deviation from Raoult's law

behaves like a near ideal solution

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The correct Answer is:

A solution of acetone in ethnol shows a positive deviation from Raoult's law. In pure ethnol, molecules are hydrogen bonded. On adding acetone, these molecules get in between the host molecules breaking the hydrogen bonds of host molecules. This changes the intermolecular interaction pattern and becomes the cause for ethanol and acetone solution to behave nonideally and show a positive deviation from Raoult's law.

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