Compounds of Carbon Containing Halogens (Haloalkanes and Haloarenes) — Chapter Summary
Telangana Open School (TOSS) · Class 12 · Chemistry
Summary of Compounds of Carbon Containing Halogens (Haloalkanes and Haloarenes) for Telangana Open School (TOSS) Class 12 Chemistry.
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Overview
Haloalkanes and haloarenes are organic compounds in which one or more hydrogen atoms of hydrocarbons are replaced by halogen atoms (F, Cl, Br, I). These compounds are not found in nature and are synthesized in laboratories. They are widely used in industries and households as solvents, refrigerants,
Key Concepts
Haloalkanes are named by selecting
Haloalkanes are named by selecting the longest carbon chain containing the halogen and numbering it so that the halogen gets the lowest possible numbe
Haloalkanes can be prepared from alkanes
Haloalkanes can be prepared from alkanes via free radical halogenation (for Cl and Br), from alcohols using HX, PX₃, PX₅, or SOCl₂. Haloarenes are pre
Haloalkanes and haloarenes are polar but
Haloalkanes and haloarenes are polar but immiscible in water due to inability to form hydrogen bonds. They have higher boiling points than parent hydr
Haloalkanes are more reactive than haloarenes
Haloalkanes are more reactive than haloarenes in nucleophilic substitution because the C–X bond in haloarenes gains partial double bond character due
Important polyhalogen compounds include chloroform (CHCl₃)
Important polyhalogen compounds include chloroform (CHCl₃), iodoform (CHI₃), DDT, and BHC. Chloroform is stored in dark bottles to prevent oxidation t
Learning Objectives
- Define haloalkanes and haloarenes
- Name haloalkanes and haloarenes using IUPAC rules
- Explain methods of preparation of haloalkanes and haloarenes
- Compare physical and chemical properties of haloalkanes and haloarenes
- Distinguish between haloalkanes and haloarenes
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Sources & Official References
Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.
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