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Statement-1:p-Hydroxybenzoic acid has a ...

Statement-1:p-Hydroxybenzoic acid has a lower boiling point that o-Hydroxybenzoic acid.
Statement-2:o-Hydroxybenzoic acid has intramolecular hydrogen bonding.

A

Statement-1 is True, Statement-2 is True, Statement-2 is a correct explanation for Statement-1

B

Statement-1 is True, Statement-2 is True, Statement-2 is NOT a correct explanation for Statement-1

C

Statement-1 is True, Statement-2 is False.

D

Statement-1 is False, Statement-2 is True.

Text Solution

AI Generated Solution

The correct Answer is:
To analyze the statements provided, we need to evaluate each one based on the properties of p-hydroxybenzoic acid and o-hydroxybenzoic acid. ### Step 1: Understand the Structures - **o-Hydroxybenzoic Acid** (also known as Salicylic Acid) has the hydroxyl (-OH) group and the carboxylic acid (-COOH) group in the ortho position (adjacent to each other). - **p-Hydroxybenzoic Acid** has the hydroxyl (-OH) group and the carboxylic acid (-COOH) group in the para position (opposite sides of the benzene ring). ### Step 2: Analyze Statement 1 - **Statement 1** claims that p-hydroxybenzoic acid has a lower boiling point than o-hydroxybenzoic acid. - In o-hydroxybenzoic acid, the -OH group can form intramolecular hydrogen bonds with the -COOH group. This intramolecular hydrogen bonding stabilizes the molecule and reduces the energy required to break these interactions when boiling. - In contrast, p-hydroxybenzoic acid primarily exhibits intermolecular hydrogen bonding, which involves interactions between separate molecules. These intermolecular forces generally require more energy to overcome. ### Step 3: Compare Boiling Points - Because o-hydroxybenzoic acid has intramolecular hydrogen bonding, it has a lower boiling point compared to p-hydroxybenzoic acid, which has stronger intermolecular hydrogen bonding. - Therefore, **Statement 1 is false**: p-hydroxybenzoic acid does not have a lower boiling point than o-hydroxybenzoic acid. ### Step 4: Analyze Statement 2 - **Statement 2** asserts that o-hydroxybenzoic acid has intramolecular hydrogen bonding. - As previously mentioned, the -OH group in o-hydroxybenzoic acid can indeed form an intramolecular hydrogen bond with the -COOH group. This is a characteristic feature of its structure. ### Conclusion - **Statement 2 is true**: o-hydroxybenzoic acid does exhibit intramolecular hydrogen bonding. ### Final Answer - Statement 1 is false and Statement 2 is true. Therefore, the correct option is that Statement 1 is false and Statement 2 is true.
To analyze the statements provided, we need to evaluate each one based on the properties of p-hydroxybenzoic acid and o-hydroxybenzoic acid. ### Step 1: Understand the Structures - **o-Hydroxybenzoic Acid** (also known as Salicylic Acid) has the hydroxyl (-OH) group and the carboxylic acid (-COOH) group in the ortho position (adjacent to each other). - **p-Hydroxybenzoic Acid** has the hydroxyl (-OH) group and the carboxylic acid (-COOH) group in the para position (opposite sides of the benzene ring). ### Step 2: Analyze Statement 1 - **Statement 1** claims that p-hydroxybenzoic acid has a lower boiling point than o-hydroxybenzoic acid. ...
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