When acetone and chloroform are mixed together, which of the following observations is correct?

A-A and B-B interactions are stronger than A-B interactions

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A-A and B-B interactions are weaker than A-B interactions

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A-A and B-B interactions are equal

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The liquid form separate layers and are immiscible

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Solution

The correct option is B A-A and B-B interactions are weaker than A-B interactions
A mixture of chloroform (B) and acetone (B) forms a solution with a negative deviation from Raoult's law. This is because chloroform molecule is able to form hydrogen bond with acetone molecules. Since the A-A and B-B interactions are weaker than A-B interactions so it will show a negative deviation.

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Similar questions

Q. On the basis of information given below mark the correct option information.
(I) In bromoethane and chloroethane mixture intermolecular interactions of A-A and B-B type are nearly same as A-B type interactions.
(II) In ethanol and acetone mixture A-A or B-B type intermolecular interactions are stronger than A-B type interactions.
(III) In chloroform and acetone mixture A-A or B-B type intermolecular interactions are weaker than A-B type interactions.

Question 21
On the basis of information given below mark the correct option.
Information
(i) In bromoethane and chloroethane mixture intermolecular interactions of A-A and B-B type are nearly same as A-B type interactions.
(ii) In ethanol and acetone mixture A-A or B-B type intermolecular interactions are stronger than A-B type interactions.
(iii) In chloroform and acetone mixture A-A or B-B type intermolecular interactions are weaker than A-B type interactions.
(a) Solution (ii) and (iii) will follow Raoult's law
(b) Solution (i) will follow Raoult's law
(c) Solution (ii) will show negative deviation from Raoult's law
(d) Solution (iii) will show positive deviation from Raoult's law

The diagram given below is a vapour pressure-composition graph for a binary solution of $A$ and $B$ .

In the solution, A-B interactions are:

Q. Assertion :In an ideal solution,

Δ_{m i x} H

is zero. Reason: In an ideal solution, A-B interactions are lower than A-A and B-B interactions.

Question 23
If two liquids A and B form minimum boiling azeotrope at some specific composition then
(a) A-B interactions are stronger than those between A-A or B-B
(b) vapour pressure of solution increases because more number of molecules of liquids A and B can escape from the solution
(c) vapour pressure of solution decreases because less number of molecules of only one of the liquids escape from the solution
(d) A-B interactions are weaker than those between A-A or B-B

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