1
Question
Study the figures given below and mark the correct statement:
Study the figures given below and mark the correct statement:
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Solution
The correct option is C (i) Acetone + Ethyl alcohol; (ii) Acetone + Chloroform
In the case of graph (i): A – B interactions are weaker than the intermolecular interactions in A – A and B – B since total pressure is more than expected by Raoult's law. So, it has a positive deviation.
In the case of graph (ii): A – B interaction are stronger than the intermolecular interactions in A – A and B – B since total pressure is less than expected by Raoult's law. So, it has a negative deviation.
For example, acetone and ethyl alcohol form a non-ideal solution showing a positive deviation from Raoult's law.
For example, acetone and chloroform form a non-ideal solution showing negative deviation from Raoult's law.
So, the correct option is C.
In the case of graph (i): A – B interactions are weaker than the intermolecular interactions in A – A and B – B since total pressure is more than expected by Raoult's law. So, it has a positive deviation.
In the case of graph (ii): A – B interaction are stronger than the intermolecular interactions in A – A and B – B since total pressure is less than expected by Raoult's law. So, it has a negative deviation.
For example, acetone and ethyl alcohol form a non-ideal solution showing a positive deviation from Raoult's law.
For example, acetone and chloroform form a non-ideal solution showing negative deviation from Raoult's law.
So, the correct option is C.
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