Chemical Reactions of Alkanes (OCR A-Level Chemistry A): Flashcards
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Why alkanes are unreactive
Why alkanes are unreactive
Strong, non-polar C—C and C—H bonds
Complete alkane combustion products
Complete alkane combustion products
and
Incomplete alkane combustion products
Incomplete alkane combustion products
CO (toxic) or C (soot)
Condition for alkane halogenation
Condition for alkane halogenation
UV light (or sunlight)
Halogens used for alkane substitution
Halogens used for alkane substitution
and only
Definition of a radical
Definition of a radical
Species with an unpaired electron
Three stages of radical substitution
Three stages of radical substitution
Initiation, propagation, termination
Homolytic fission
Homolytic fission
Bond breaks; each atom takes one electron
Key feature of propagation steps
Key feature of propagation steps
One radical on each side (chain reaction)
Radical substitution synthesis limitation
Radical substitution synthesis limitation
Forms mixture of products (further substitution)
