Which of the following species cannot exhibit resonance due to the absence of an appropriate conjuga — GOC and Organic Chemistry Basics Chemistry Question

💡 Solution & Explanation

Propene ($CH_2=CH-CH_3$) lacks conjugation. The $sp^3$ hybridized methyl carbon does not possess an unhybridized p-orbital aligned with the adjacent $\pi$ bond. Thus, $\pi$ -electrons cannot delocalize.