Final answer:
The correct option is A. The term for the family of organic compounds soluble in organic solvents but not in water is 'lipids,' specifically 'triglycerides,' which are more soluble in organic solvents like dichloromethane.
Step-by-step explanation:
The family of organic compounds that are soluble in organic solvents but not in water are called lipids. Lipids include a variety of molecules such as fats, oils, and cholesterol. These substances share the common property of being hydrophobic, meaning they do not mix well with water but are soluble in organic solvents like dichloromethane. Lipids are a diverse group of compounds characterized mainly by their hydrocarbon content.
While they are not defined by specific functional groups, they do often contain other functional groups derived from phosphoric acid, carbohydrates, or amino alcohols. Therefore, the correct answer to the question is B. Triglycerides, which are a type of lipid. These are esters formed from glycerol and fatty acids and fit the criteria of being more soluble in organic solvents than in water. Moreover, according to the question, option B (Triglycerides) and 4. B (Water) are directly related. Water is not an organic compound, making option B (Water) the answer to which one is not one of the four major classes of organic compounds.