Question

question 1
12 pts
which liquid is miscible with water?
carbon tetrachloride
ethyl alcohol
bromine
oil

Explanation:

• Carbon tetrachloride: It is non - polar. Water is polar. According to the "like dissolves like" principle (polar solvents dissolve polar substances and non - polar solvents dissolve non - polar substances), carbon tetrachloride is not miscible with water.
• Ethyl alcohol: It has a hydroxyl (-OH) group. The -OH group can form hydrogen bonds with water molecules. Hydrogen bonding is a strong intermolecular force that allows ethyl alcohol to be miscible with water.
• Bromine: It is non - polar (Br₂ is a diatomic non - polar molecule). Using the "like dissolves like" principle, it is not miscible with water.
• Oil: Generally, oils are non - polar (composed of long - chain hydrocarbons). So, they are not miscible with water.

Answer:

ethyl alcohol