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16 Group Elements

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Published in: Chemistry
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Notes of 16 Group Elements

Sachin S / Pune

14 years of teaching experience

Qualification: M.Sc (Pune University - 2008), B.Sc (Yashwant College - 2006)

Teaches: Chemistry, AIEEE, BITSAT, CET, IIT JEE Advanced, IIT JEE Mains, AIPMT, Medical Entrance Exams, NEET

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  1. HALOALKANES AND HALOARENES
  2. HALOALKANES AND HALOARENES INTRODUCTION OF HALOALKANES & HALOARENES
  3. HALOALKANES AND HALOARENES Introduction Now, replace hydrogen of alkane with haloge alkyl -x Alkane (alkyl halide) Haloalkane and, Haloalkane is the IUPAC name.
  4. HALOALKANES AND HALOARENES Introduction Aryl Ar — r -x (Aryl halide) Arene Haloarene Do you know the name of this compoun ? What will be the product? hat does Ar stand or Can you name this compoun " Haloarene is the IUPAC name.
  5. HALOALKANES AND HALOARENES Haloalkanes Haloalkanes contain halogen atom or atoms attached to the sp3 hybridised carbon atom of an alkyl group. Haloarenes Haloarenes contain halogen atom or atoms attached to the sp2 hybridised carbon ato of an aryl group.
  6. HALOALKANES AND HALOARENES Haloalkanes Ex: H3C- -X Halo ethane Haloarenes x Ex: Halo arene
  7. HALOALKANES AND HALOARENES 1. What is the name of - X? a) Methyl halide b) Propyl halide *Ethyl halide d) None of these
  8. HALOALKANES AND HALOARENES 2. In halo alkanes, halogen atom is attached to... a) sp2 hybridized carbon atom of an aryl group. sp3 hybridized carbon atom of an alkyl group. c) sp3 hybridized carbon atom of an aryl group. d) None of these.
  9. HALOALKANES AND HALOARENES 3. In halo arenes, halogen atom is attached to... sp2 hybridised carbon atom of an aryl group. b) sp3 hybridised carbon atom of an alkyl group. c) sp3 hybridised carbon atom of an aryl group. d) None of these.
  10. HALOALKANES AND HALOARENES CLASSIFICATION OF HALOALKANES
  11. HALOALKANES AND HALOARENES Classification of Haloalkanes (Based on No. of Halogen atoms) Monohaloalkanes Haloalkanes Polyhaloalkanes
  12. HALOALKANES AND HALOARENES Monohaloalkanes (Contain only one halogen atom) It is again further sub-divided into three types: Monohaloalkanes Primary alkyl halide Secondary alkyl halide Tertiary alkyl halide
  13. HALOALKANES AND HALOARENES What is Primary (10) alkyl halide? An alkyl halide in which halogen atom is attached to 10 (Primary )'C' atom is called primary alkyl halide. Eg. H3C- - Cl Chloroethane (Ethyl chloride)
  14. HALOALKANES AND HALOARENES What is Secondary (20) alkyl halide? An alkyl halide in which halogen atom is attached to 20 (Secondary )'C' atom is called secondary alkyl halide. H3C- - CH3 (iso/sec — propyl chloride) 2-Chloropropane Can you name this compound?
  15. HALOALKANES AND HALOARENES What is Tertiary (30) alkyl halide? An alkyl halide in which halogen atom is attached to 30 (Tertiary )'C' atom is called Tertiary alkyl halide. CH3 H3C- C -CH3 (Tert — butyl chloride) 2-methyl-2-chloropropane Can you write the general representation and general formula of an alkyl halide? n 2n+1
  16. HALOALKANES AND HALOARENES • alkyl halide? 1) 2-methyl-2-chloro propane IS --- a) Primary b) Secondary c ertiary d) Quaternary
  17. HALOALKANES AND HALOARENES 2. Which of the following is secondary alkyl halide ? a) Ethyl Chloride b - Bromo propane c) Tertiary butyl Bromide d) Isobutyl Chloride
  18. HALOALKANES AND HALOARENES CLASSIFICATION OF POLYHALO ALKANES
  19. HALOALKANES AND HALOARENES Polyhaloalkanes Now, we will discuss 2nd type of Haloalkanes called polyhaloalkanes which is again subdivided into three types. Polyhaloalkanes Dihaloalkanes Trihaloalkanes Tetrahaloalkanes and so on
  20. HALOALKANES AND HALOARENES Dihaloalkanes (Contain two halogen atoms) Ex: CH2C12 (Dichloromethane)
  21. HALOALKANES AND HALOARENES Classification of Dihaloalkanes (contain two halogen atoms) Geminal dihalide Dihaloalkanes Vicinal dihalide
  22. HALOALKANES AND HALOARENES Geminal dihalide or Gem.dihalides ( In Gem.dihalides two identical halogen atoms are attached to the same carbon atom). Ex: H3C - CH C12 (Ethylidene dichloride) 1,1- dichloroethane
  23. HALOALKANES AND HALOARENES Vicinal dihalide (Two identical halogen atoms are attached to the adjacent carbon atoms). Ex: H2C - CH2 (Ethylene chloride) 1,2-Dichloroethane
  24. HALOALKANES AND HALOARENES Trihaloalkanes (Contains three halogen atoms) Ex: CHC13 (chloroform) or (Trichloromethane)
  25. HALOALKANES AND HALOARENES Tetrahaloalkanes (Contains four halogen atoms) Ex: CC14 (Tetrachloromethane)
  26. HALOALKANES AND HALOARENES 1. Which of the following is gem. dihalide? Ethyledene dichloride b) Ethylene dichloride c) Ethyl Chloride d) Isopropyl Chloride
  27. HALOALKANES AND HALOARENES 2. Which of the following is vicinal dihalide? a) Ethyledene dichloride VEthylene dichloride c) DDT d) Isobutyl Chloride
  28. HALOALKANES AND HALOARENES Thank you...

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