State True or False.
$C H C l_{3}$ and acetone mixture shows negative deviation from Raoult's law.

True

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False

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Solution

The correct option is A True
The statement is true.
A negative deviation from Raoult's law is when the observed vapor pressure is less than that calculated from Raoult's law. When Acetone is mixed with Chloroform, the vapor pressure decreases due to hydrogen bonding and increase in inter-molecular attraction between the molecules. Thus it shows a deviation from Raoult's law.

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and cyclohexane mixture shows positive deviation from Raoult's law.

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The liquid pair of acetone-chloroform shows a positive deviation from Raoult's law.

Question 25
On the basis of information given below mark the correct option. Information On adding acetone to methanol some of the hydrogen bonds between methanol molecules break.
(a) At specific composition methanol-acetone mixture will form minimum boiling azeotrope and will show positive deviation from Raoult's law
(b) At specific composition methanol-acetone mixture will form maximum boiling azeotrope and will show positive deviation from Raoult's law
(c) At specific composition methanol-acetone mixture will form minimum boiling azeotrope and will show negative deviation from Raoult's law
(d) At specific composition methanol-acetone mixture will form maximum boiling azeotrope and will show negative deviation from Raoult's law

Q. The mixture which shows negative deviation from Raoult's law is:

Q. Why does solution of chloroform & acetone show negative deviation from Raoult's law?
Illustrate the deviation with the help of diagrams.

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State True or False.CHCl3 and acetone mixture shows negative deviation from Raoult's law.

State True or False.
$C H C l_{3}$ and acetone mixture shows negative deviation from Raoult's law.