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A solution of acetone in water show nega...

A solution of acetone in water show negative deviation from Raoult’s law, Which of the following statement regarding this solution is incorrect ?

A

The mixing of acetone in water is exothermic

B

Acetone-water molecule are held less firmly than acetone-acetone and water-water molecule

C

Observed boiling point will be slightly greater than the ideal boiling point

D

Vapour pressure of the solution will be slightly lower than that predicted from Raoult.s law

Text Solution

Verified by Experts

The correct Answer is:
B
`CH_(3)-underset(A)overset(O)overset(||)(C)-CH_(3)+underset(B)(H_(2)O)`
A----A (dipole-dipole) & B-----B & A-----A & B-----B (H-bonding)
Basic oxygen of acetone help it to form strong H-bond with either of two acidic protons of water.
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