Calculate No. of stereoisomers | Stereochemistry part II | Organic Chem.| NET| SET | IIT JAM | NEET

#No. of stereoisomers #Stereochemistry, Hello everyone, Welcome to our channel, Chemistry By Wish #Highlights of the video How to calculate number of stereoisomers for optical and geometrical isomers Types of isomers 1. Constitutionally unsymmetrical molecules Total no. of stereoisomers = 2n (Where n = number of optical or geometrical centres) Note- All isomers are optical active 2. Constitutionally symmetrical molecules a. With even no of centres (optical or geometrical) Total no. of stereoisomers = 2(n-1) + 2(n/2 -1) Optical active = 2(n-1) Optical inactive (meso) = 2(n/2 -1) b. With odd no of centres (optical or geometrical) Total no. of stereoisomers = 2(n-1) Optical active = 2(n-1) - 2(n-1/2) Optical inactive (meso) = 2(n-1/2) c. Optical centre is at middle Total no. of stereoisomers = 2(n-1) d. Geometrical centre is at middle Total no. of stereoisomers = 2(n-1) + 2(n-1/2) #Other Useful videos for references – You may use below link of videos 1. Solution preparation – Molarity, Normality, % solution, ppm solutions https://youtu.be/c3enHF9MZDI 2. Periodic table Part I (Short tricks) – s and p block elements https://youtu.be/VGu_uuU9YsM 3. Periodic table Part II (Short tricks) – d and f block elements https://youtu.be/j6yLTZBd71o 4. Electronic configuration in 5 minutes https://youtu.be/xe7ppED_00I 5. Aromaticity Part I https://youtu.be/rrYnEfGg3LA 6. Aromaticity part II https://youtu.be/JEUwT-dbqUU 7. Valency of elements | Tricks for oxidation state calculations | Rules for assigning oxidation number https://youtu.be/-1ukLZvQ7Bk 8. Stereochemistry- Part I https://youtu.be/cvSq3szJtkc

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