In the structure of 3-ethyl-4,4-dimethylheptane, the number of , , , and carbon atoms are respective — GOC and Organic Chemistry Basics Chemistry Question

💡 Solution & Explanation

Construct the chain: C1(1°)-C2(2°)-C3(3°, bonded to ethyl)-C4(4°, bonded to two methyls)-C5(2°)-C6(2°)-C7(1°). Ethyl is $CH_2(2^\circ)-CH_3(1^\circ)$. Two methyls are both $1^\circ$. Total 1° = C1, C7, Ethyl-CH3, Methyl1, Methyl2 = 5. Total 2° = C2, C5, C6, Ethyl-CH2 = 4. Total 3° = C3 = 1. Total 4° = C4 = 1. Result: 5, 4, 1, 1.