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Hydrocarbons with double or triple bonds between the carbon atoms are said to be unsaturated. Alkenes and alkynes are unsaturated.
One of the two covalent bonds between the carbons is a pi-bond and weaker than the other which is a sigma bond. If a halogen, like bromine, reacts with ethene, the weaker bond is broken and two atoms are added to the compound. e.g.
Ethyne has two weak pi-bonds which can also be broken to react with bromine in an addition reaction.
Reactions of hydrocarbons with halogens is also called halogenation.
Alkanes only have single bonds between the carbon atoms and are said to be saturated. In order for a substance, like a halogen, to react with an alkane, an atom has to be removed to make Continue reading “Organic Chemistry. Organic Reactions Grade 12 grade 12 organic chemistry reaction names Flashcards and Study …”
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