Answer: Option (B) is the correct answer.
Explanation:
For a compound to able to dissolve in a polar solvent like water the substance should have high solubility.
As solubility is the ability of a substance to readily dissolve in a unit volume of a substance.
For example, when we add table salt (sodium chloride) into water then it will readily dissolve in it due to its high solubility.
Corrosion is defined as the process in which surface of a substance gets oxidized due to the moisture present in the oxygen. So, high corrosion displays that metal is highly oxidized and it does not shows that substance is soluble in water.
Low hardness means that substance is soft in nature. And, low hardness does not indicates that the substance is soluble in water.
Therefore, we can conclude that if you are looking for a substance that will easily dissolve in water, you should look for a substance with high solubility properties.
