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B- Dihalogen Derivatives

Dihalogen
Derivatives

Geminal     Vicinal
Dihalides  Dihalides

e.g. e.g.

Physical Properties of Alkyl Halides

 ➢ The halogen atom is attached to the carbon atom
    through a covalent bond that uses an sp3 hybrid orbital of
    carbon.

 ➢ Bond length: C-I > C-Br > C-Cl > C-F
 ➢ Bond strength: C-F > C-Cl > C-Br > C-I
 ➢ Relative reactivity: R-I > R-Br > R-Cl > R-F
 ➢ Low Mwt. alkyl halides are liquid at room temperature.
 ➢ Liquid alkyl halides are immiscible and heavier than

    water.

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