See image — GOC and Organic Chemistry Basics Chemistry Question

💡 Solution & Explanation

**Step-by-step solution:** **Identify the functional groups and their intermolecular forces:** - Compound 1: $CH_3CH_2CH_2CH_2OH$ — **Primary alcohol** (hydrogen bonding) - Compound 2: $CH_3CH_2CH_2CHO$ — **Aldehyde** (dipole-dipole interactions) - Compound 3: $CH_3CH_2CH_2COOH$ — **Carboxylic acid** (strong hydrogen bonding + dimerization) **Rank boiling points by intermolecular forces:** Carboxylic acids have the **strongest intermolecular forces** due to: - Extensive hydrogen bonding - Self-association/dimerization in vapor phase Alcohols have **moderate hydrogen bonding** (slightly weaker than carboxylic acids due to single H-bond donor/acceptor). Aldehydes have only **dipole-dipole interactions** (weakest among these three). **Order: $3 > 1 > 2$** Actual boiling points confirm this: - Compound 3: 141°C - Compound 1: 97°C - Compound 2: 48°C **The answer is (B): $3 > 1 > 2$**