See image — IUPAC and Nomenclature Chemistry Question

💡 Solution & Explanation

Step 1: Identify the structure. The compound has a central CH group connected to: a CH2Cl group (above), a CH2Cl group on the left (CH2—Cl), and a CH2Cl group on the right (CH2—Cl). Wait, let me re-read the structure carefully. The structure shows: - Left: CH2 with Cl below it - Center: CH with CH2Cl above it - Right: CH2 with Cl below it - The three carbons are connected in a chain: ClCH2 — CH(CH2Cl) — CH2Cl Step 2: Identify the parent chain. The longest carbon chain is three carbons: C1-C2-C3, where C1 = CH2Cl, C2 = CH(CH2Cl), C3 = CH2Cl. This gives a propane backbone. Step 3: Identify substituents. On carbon 1: Cl (from CH2Cl, so position 1 has Cl). On carbon 2: a chloromethyl group (CH2Cl). On carbon 3: Cl (from CH2Cl, so position 3 has Cl). Step 4: Name the compound. The parent chain is propane (3 carbons). Positions 1 and 3 have chloro substituents, and position 2 has a chloromethyl substituent. The name is: 1,3-Dichloro-2-(chloromethyl)propane. Step 5: Verify other options. (a) Tris(chloromethyl)methane would be CH(CH2Cl)3 — a central CH with three CH2Cl groups, which doesn't match. (c) 1-Chlorobis(chloromethyl)ethane doesn't correctly describe this structure. (d) 'None of these' is eliminated since option (b) correctly names the compound. Therefore, the correct answer is B.