Benzoic acid dissolved in benzene shows a molecular mass of ______________ g/mol (A) 122 (B) 244 (C) 366 (D) 488

Benzoic acid is a white solid compound with the formula C6H5COOH. It is the simplest aromatic compound. This compound when put into benzene solution, it dissolves due to the formation of intermolecular hydrogen bonding. Hence, this leads to a formation of dimer. Benzoic acid is also called as benzene carbonic acid. This benzoic acid occurs naturally in many plants and serves as an intermediate in the biosynthesis of many secondary metabolites. Due to the formation of dimer, the molecular weight of this compound will be double that of the benzoic acid. The calculation is shown below

(C6H5COOH)2 = 2 x 122 = 244 g/mol [Since molecular weight of benzene is 122 g/mol]

Hence, the correct option is (B)

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