Namaskar Doston, In this video, we've discussed Optical Activity with basics points & definition. Points: Optical Activity Isomerism Chirality 2-Chloro Butane Racemic Mixture Non-Super Imposable Images Below are some important videos links : New Chemistry Syllabus Discussion: https://youtu.be/xpXaqvzPnLI Basic of Chemistry: https://youtu.be/715NIioyesA https://youtu.be/u3ITi1t4hg4 Halogen Derivatives of alkane 1: Part 1: https://youtu.be/EfSxf95uQYg Halogen Derivatives of alkane 2: Part 2: https://youtu.be/tPuDGI66koQ Halogen Derivatives of alkane 3: Part 3: https://youtu.be/0yBstul_ucw What is K2Cr2O7? : https://youtu.be/ge3oKxUMya4 How glass is made? : https://youtu.be/-Fi7c9Fe3Fo