This chemistry question involves key chemical concepts and calculations. The detailed solution below walks through each step, from identifying the reaction type to computing the final answer.
ScanSolve AI Answer
1. Ortho-nitrophenol is less soluble in water than p- and m-nitrophenols because: Ortho-nitrophenol forms intramolecular hydrogen bonds* between the hydroxyl group and the nitro group within the same molecule. This internal hydrogen bonding reduces its ability to form hydrogen bonds with water molecules. In contrast, para-nitrophenol and meta-nitrophenol cannot form intramolecular hydrogen bonds due to the distance between the groups. They primarily form intermolecular hydrogen bonds* with other nitrophenol molecules and with water molecules, leading to greater solubility in water. Therefore, the correct option is (a). The final answer is a 2. Which of the following is the weakest acid? To determine the weakest acid, we compare their acid strengths, often indicated by their pKa values. A higher pKa value corresponds to a weaker acid. a)* Phenol (C_6H_5OH): pKa ≈ 10 b)* Acetic acid (CH_3COOH): pKa ≈ 4.76 c)* Formic acid (HCOOH): pKa ≈ 3.75 d)* Benzoic acid (C_6H_5COOH): pKa ≈ 4.2 Carboxylic acids (b, c, d) are generally much stronger acids than phenols (a) because the carboxylate anion (R-COO^-) is more effectively resonance-stabilized than the phenoxide anion (C_6H_5O^-). Among the given options, phenol has the highest pKa value, making it the weakest acid. The final answer is a Send me the next one 📸