the no of optically active compounds presnt in the isomer of C₄H₉Br????PLZ EXPLAIN IT...ASAP

Dear Student,

C₄H₉Br has 4 structural isomers :

1. 1-bromobutane
2. 2-bromobutane
3. 1-bromo-2-methylpropane
4. 2-bromo-2-methylpropane

Out of all the isomers, only 2-bromobutane contains a chiral carbon i.e. a carbon having all 4 groups different. Therefore, optical isomerism will be shown only by 2-bromobutane. 


Hence, only 1 optically active compound is present in the isomers of C₄H₉Br