Which of the following shows negative deviation from Raoult's law?

C H C l_{3}

and acetone

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C_{6} H_{6}

and

C_{2} H_{5} O H

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C_{6} H_{5} C H_{3}

and

C_{6} H_{6}

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C_{6} H_{6}

and

C C l_{4}

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Solution

The correct option is A $C H C l_{3}$ and acetone
Option A is the correct answer.
Negative Deviation from Raoult's law occurs when the vapour pressure of the component is lower than what is expected in Raoult's law.
When acetone and chloroform are mixed together a hydrogen bond is formed between them which increases inter molecular attraction between them and hence decreases the vapour pressure

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Similar questions

Q. Match the following

Column - I	Column - II
a) A nearly ideal solution	p) $H_{2} O + C_{2} H_{5} O H$
b) A solution showing positive deviation	q) $C_{6} H_{6} + C_{6} H_{5} C H_{3}$
c) A solution showing negative deviation	r) $C_{6} H_{6} + C H C l_{3}$
d) An azeotropic mixture	s) $C H_{3} C O C H_{3}$ + $C_{2} H_{5} O H$
	t) $Δ H$ and $Δ V$ are positive
	u) $Δ H$ and $Δ V$ are negative

Q. State True or False.

C H C l_{3}

and acetone mixture shows negative 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. State True or False.

C_{2} H_{5} O H

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

Q. Assertion :Acetone-Carbon disulphide solution shows positive deviation from Raoult's law. Reason: Acetone

+

Aniline solution shows positive deviation from Raoult's law.

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