Optical Activity, Chirality and Chiral Centres | Isomerism Part 8 | JEE · NEET

Two molecules with identical melting points, boiling points and solubility. One test tells them apart: polarised light. 📘 In this part (8 of 14) 1️⃣ Plane-polarised light, the polarimeter and specific rotation 2️⃣ Symmetry, chirality and enantiomers 3️⃣ Chiral centres, stereocentres and special cases 🧭 Topics in this video • Plane-polarised light and the polarimeter • Specific rotation • Symmetry elements and chirality • Enantiomers • Chirality centre and stereocentre ✏️ Your turn: The optically active alkane with the lowest molecular mass is: Answer in the comments! 📄 Companion page, formula sheet and practice set: https://layrd.live 📚 Isomerism: all 14 parts (playlist: Isomerism | JEE · NEET | layrd.live) • Part 1: Isomers: Chain, Position and Ring-Chain    • Isomerism Basics: Chain, Position and Ring...   • Part 2: Functional Isomerism    • Functional Isomerism: Every Family You Nee...   • Part 3: Metamerism    • Metamerism: Ethers, Ketones, Amines, Amide...   • Part 4: Tautomerism and Keto-Enol Equilibrium    • Keto-Enol Tautomerism: Enol Content, Mecha...   • Part 5: Other Types of Tautomerism    • Other Tautomerism: Nitro, Oxime, Enamine, ...   • Part 6: Degree of Unsaturation and Counting Isomers    • Degree of Unsaturation and Counting Isomer...   • Part 7: Geometrical (cis-trans) Isomerism    • Geometrical Isomerism: Cis-Trans, Syn-Anti...   ▶ Part 8: Optical Activity, Symmetry and Chirality (this video) • Part 9: Optical Isomerism Without a Chiral Carbon    • Chiral Without a Chiral Carbon: Allenes, S...   • Part 10: Lactic Acid, Tartaric Acid and Counting Stereoisomers    • Lactic Acid, Tartaric Acid and Counting Op...   • Part 11: Racemic Mixtures, Optical Purity and Configuration    • Racemic Mixture, Enantiomeric Excess and W...   • Part 12: Diastereomers, Fischer Projections and D/L Configuration    • Fischer Projections, Diastereomers and D/L...   • Part 13: Conformations of Ethane, Propane and Butane    • Conformations of Ethane and Butane: Newman...   • Part 14: Conformations of Cyclohexane    • Cyclohexane Chair, Boat, Axial and Equator...   ⏱ Chapters 0:00 Optical isomers 0:16 Plane-polarised light 0:55 Specific rotation 1:34 Symmetry and chirality 2:36 Enantiomers 3:10 Chiral centres and stereocentres 3:53 Special cases 4:33 Spotting chiral centres 5:00 JEE question + traps 5:21 Recap 🔔 Subscribe to layrd.live: Layer by Layer. Follow layrd.live 🌐 layrd.live https://layrd.live ▶️ youtube/layrd_live    / @layrd_live   📸 instagram/layrd_live   / layrd_live   #Chemistry #JEE #NEET #OrganicChemistry #layrdlive #STEM