Question

Which of the following solvents would be the best to separate a mixture containing benzoic acid, 2,4-dinitrobenzoic acid, and 2,4,6-trinitrobenzoic acid by TLC?

A. Methylene chloride
B. Hexane
C. Acetone
D. None of the above

Answer 1

The best solvent to separate the mixture containing benzoic acid, 2,4-dinitrobenzoic acid, and 2,4,6-trinitrobenzoic acid by TLC is Acetone.

Step-by-step explanation:

The best solvent to separate a mixture containing benzoic acid, 2,4-dinitrobenzoic acid, and 2,4,6-trinitrobenzoic acid by TLC (Thin Layer Chromatography) would be C. Acetone. Acetone is a commonly used solvent in TLC because it has a good solvating power for polar compounds like acids. It is able to dissociate the mixture into individual components and allow them to travel at different speeds on the TLC plate, leading to effective separation. Methylene chloride (A) and hexane (B) are non-polar solvents, which will not effectively separate acidic compounds like benzoic acid and its derivatives. Therefore, the correct answer is C. Acetone.

Answer 2

The correct option is Methylene chloride

Step-by-step explanation:

Methylene chloride or Dichloromethane has an organic formula of CH2CL2. it is commonly used as solvent, it is very volatile and dissolves many organic compounds including a mixture containing benzoic acid, 2,4-dinitrobenzoic acid, and 2,4,6-trinitrobenzoic acid. It is colorless, has a chloroform like odor and Miscible in ethyl acetate, alcohol, hexanes, benzene, CCl4, diethyl ether, CHCl3.