Question

When two liquid A and B are mixed then their boiling points becomes greater than both of them. What is the nature of this solution (a) Ideal solution (b) Positive deviation with non-ideal solution (c) Negative deviation with non-ideal solution (d) Normal solution

Answer 1

The answer is (b) Positive deviation with a non-ideal solution

Explanation:

• Here the deviation we are talking about is from the Raoult's law.

• According to the Raoult's law, each component of an ideal solution has partial pressure equal to the vapour pressure of the pure component multiplied by the more fraction.  

• Positive deviation means that the vapour pressure was higher than expected.
• Since, the boiling point of the mixture is greater than both the component. We conclude, that option (b) is correct.

Answer 2

Answer:

(b)-positive deviation with non -ideal