See image — Isomerism and Stereochemistry Chemistry Question

💡 Solution & Explanation

# Analysis of Chirality in Each Compound **Option (A): Sulfoxide with Me-S(=O)-Et** The sulfur atom is bonded to: - Methyl group (Me) - Ethyl group (Et) - Oxygen (=O) - Lone pair (LP) Sulfur is a stereogenic center with four different groups. The presence of the lone pair makes this an asymmetric sulfur center → **Chiral** --- **Option (B): Cyclohexene with substituents** The structure shows a cyclohexene ring with $H_3C$ and $CH_3$ groups attached via double bond and single bond respectively. The carbon bearing the methyl group is bonded to: - Hydrogen - Methyl group - Cyclohexyl ring - Another carbon This carbon is a stereogenic center with four different groups → **Chiral** --- **Option (C): Alkene with $CH_3-C=CH-CH_2$ skeleton** The double bond carbons have: - Left carbon: bonded to two identical methyl groups ($CH_3$ each) → **NOT a stereogenic center** (violates rule: must have 4 different groups) - Not chiral --- **Conclusion:** Both **(A)** and **(B)** contain stereogenic centers with four different groups. Option **(C)** lacks a chiral center due to symmetry. **The answer is (D): Both (A) and (B)** ✓