Explain why alkenes are much more reactive than alkanes towards chlorine (Cl₂) or bromine (Br₂) in the dark at room temperature, and why alkanes do not react with HCI (g) or HBr (g) whereas alkenes do. [AC1.2]

Explain why alkenes are much more reactive than alkanes towards chlorine (Cl₂) or bromine (Br₂) in the dark at room temperature, and why alkanes do not react with HCI (g) or HBr (g) whereas alkenes do. [AC1.2]

Organic Chemistry: A Guided Inquiry

2nd Edition

ISBN:9780618974122

Author:Andrei Straumanis

Publisher:Andrei Straumanis

ChapterL2: Mass Spectrometry

Section: Chapter Questions

Problem 20CTQ

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Concept explainers

Alkanes and Cycloalkanes

Alkanes are saturated organic compounds which are made up of C and H atoms. Alkanes have the general formula of CnH2n+2. Alkane contains sp3 hybridized carbon atoms with four sigmas (σ) bonds & every hydrogen atom is connected with one of the carbon atoms. The size of the alkane could be determined by the number of carbon atoms located in it.

Question

formed. [AC1.1]
b) Explain why alkenes are much more reactive than alkanes towards chlorine (Cl₂) or bromine
(Br₂) in the dark at room temperature, and why alkanes do not react with HCI (g) or HBr (g)
whereas alkenes do. [AC1.2]
Illustrated written account [1000 words, not including diagrams] (AC 2.2.

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