See image — Isomerism and Stereochemistry Chemistry Question

💡 Solution & Explanation

# Finding the Asymmetric Carbon Atom An **asymmetric (chiral) carbon** has four different groups attached to it. **Analysis of each structure:** **(1)** Left carbon: $Cl, Br, H, H$ — has two $H$ atoms (not asymmetric) Right carbon: $Br, H, H, H$ — has three $H$ atoms (not asymmetric) **(2)** Left carbon: $H, H, H, C$ — has three $H$ atoms (not asymmetric) Right carbon: $Cl, Cl, H, C$ — has two $Cl$ atoms (not asymmetric) **(3)** Both carbons: $H, H, H, C$ — both have three $H$ atoms (not asymmetric) **(4)** Left carbon: $H, Br, H, C$ — has two $H$ atoms (not asymmetric) Right carbon: $H, OH, CH_3, C$ — has **four different groups**: $H$, $OH$, $CH_3$, and $C$ ✓ **Answer: Option (4)** The right carbon in structure (4) is asymmetric because it bears four distinct substituents: hydrogen, hydroxyl group, methyl group, and a carbon chain—making it a chiral center capable of optical isomerism.