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Question
The mixture which shows positive deviation from Raoult's law is
The mixture which shows positive deviation from Raoult's law is
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Solution
The correct option is C Ethanol+Acetone
In positive deviation from Raolt's Law, the resulting solution has more vapour pressure than the ideal solution of the constituent liquids.
This is because the A−B interactions are weaker than A−A & B−B ones.
Because there is hydrogen bonding present in the ethyl alcohol solution and acetone molecules tend to occupy the space between them due to which some hydrogen bonds breaks, results in weaking of A−B interaction.
Chloroethane + Bromoethane forms ideal solution
Benzene + Toluene forms ideal solution
Acetone + chloroformshows negative deviation from Raoult's law
Option (a) is correct.
In positive deviation from Raolt's Law, the resulting solution has more vapour pressure than the ideal solution of the constituent liquids.
This is because the A−B interactions are weaker than A−A & B−B ones.
Because there is hydrogen bonding present in the ethyl alcohol solution and acetone molecules tend to occupy the space between them due to which some hydrogen bonds breaks, results in weaking of A−B interaction.
Chloroethane + Bromoethane forms ideal solution
Benzene + Toluene forms ideal solution
Acetone + chloroformshows negative deviation from Raoult's law
Option (a) is correct.
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