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


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