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Isomers (Structural (Example: Butane which has 2 structural isomers,…

- - - - Optical isomers are mirror images but NOT superimposed
      - They have different arrangement in space
      - Have an asymmetric carbon
      - Have similar physical and chemical properties
  - - - 2 similar groups are on the same side on different carbons
    - - 2 similar groups are of opposite sides
    - - Geometric isomers happen in alkenes only
      - there are only 2 geometric isomers (cis + trans)
      - If a compound has a cis-isomer then it has a trans-isomer and vice versa
      - Around the double bond only 2 similar groups must be present