Which of the following resonating structures of vinyl chloride () is definitively the LEAST stable? — GOC and Organic Chemistry Basics Chemistry Question

💡 Solution & Explanation

Structure A is neutral (most stable). Structure B has charge separation but all atoms (including $Cl^+$) have complete octets. Structure C ($^+CH_2-CH^--Cl$) places a positive charge on carbon with an incomplete octet (6e-), making it the least stable.