Question

Which of the following statements is correct?

• A. Single phase is obtained in immiscible solution.
• B. In partially miscible solution, single phase will be attained at a set of composition.
• C. Single phase will be attained at a set of composition for ink in water solution.
• D. Water in 1-Butanol is a completely miscible solution.

Answer 1

The correct option is B In partially miscible solution, single phase will be attained at a set of composition.

Liquid -Liquid solutions are of 3 types based on the miscibility of the liquids. They are
1. Immiscible solution
2. Partially miscible solution
3. Completely miscible solution

In immiscible solution, single phase is not observed for any set of compositions.
Water in hexane is an example of this types of solution. This mixture form two phase in the solution. Thus, option (b) is wrong.

In partially miscible solution, liquids will form a single phase liquid system for set of compositions.
Water in 1-Butanol is an example of partially miscible solution. Thus, option (d) is wrong.

In completely miscible solution, single phase is observed for all sets of compositions of the liquids.
Ink in water is an example of completely miscible solution.
Thus, option (c) is wrong.
Hence, the correct statement is (a).