Q.

On the basis of information given below mark the correct option.Information(i) In bromoethane and chloroethane mixture intermolecular interaction 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.

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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

answer is B.

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Detailed Solution

i) ®ideal obeys Raoult’s law          ii) ®+ve deviation          iii) ® -Ve  deviation
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