Question

Select correct option for miscible solvents?
A. Water and alcohol 
B. Acetone and alcohol 
C. Water and benzene 
D. Carbon tetrachloride and benzene 
Choose the correct answer from the options given below:

• A. A and B only
• B. A, B and C only
• C. A, B and D only
• D. A and D only

Answer 1

The Correct Option is C

The question asks us to identify the correct pairings of miscible solvents from the given options. Miscible solvents are those that can mix together to form a homogeneous solution without any phase separation. Let's evaluate each pair: 

1. Water and alcohol: Alcohol (such as ethanol) is known to be completely miscible with water due to the formation of hydrogen bonds. Therefore, this pairing is correct.
2. Acetone and alcohol: Both acetone and alcohol are polar solvents and are miscible with each other due to their ability to form hydrogen bonds. This pairing is also correct.
3. Water and benzene: Water is a polar solvent, whereas benzene is non-polar. Due to differences in polarity, water and benzene are not miscible. This pairing is incorrect.
4. Carbon tetrachloride and benzene: Both carbon tetrachloride and benzene are non-polar solvents, making them miscible with each other. Hence, this pairing is correct.

Reviewing the options based on the evaluation of solvent miscibility:

• A and B only: Includes pairs 1 and 2, which are correct, but excludes D, which is also correct.
• A, B and C only: Includes pairs 1, 2, and 3, but pair 3 is incorrect.
• A, B and D only: Includes pairs 1, 2, and 4, all of which are correct. This is the correct answer.
• A and D only: Excludes B, which is a correct pair.

Therefore, the correct answer is A, B and D only.