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The mixture which shows positive deviation from Raoult's Law is:

Option: 1

Chloroethene + Bromoethene


Option: 2

Ethanol + Acetone


Option: 3

benzene + Toluene

 


Option: 4

Acetone + Cloroform


Answers (1)

best_answer

A mixture of ethanol and acetone shows positive deviation from Raoult's Law. Pure ethanol possesses hydrogen bonding. Introduction of acetone between the molecules of ethanol results in breaking of some of these hydrogen bonds. Due to weakening of interactions, the solution shows positive deviation from Raoult's law.

Therefore, Option(2) is correct.

Posted by

Kuldeep Maurya

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