Naming Simple Alkynes

Key Concepts

• alkynes are hydrocarbons: made up of only carbon and hydrogen atoms

• there is a triple bond between 2 carbon atoms

• general formula: C_nH_2n-2

• name ends in "yne"

• prefix determined by the number of carbon atoms in the chain:

Animated Tutorial

Examples

Name	no. C atoms (n)	no. H atoms (2 x n) - 2	Formula	Structure
ethyne	2	(2 x 2) - 2 = 2	C2H2
propyne	3	(2 x 3) - 2 = 4	C3H4
1-butyne	4	(2 x 4) - 2 = 6	C4H6
1-pentyne	5	(2 x 5) - 2 = 8	C5H8
1-hexyne	6	(2 x 6) - 2 = 10	C6H10
1-heptyne	7	(2 x 7) - 2 = 12	C7H12
1-octyne	8	(2 x 8) - 2 = 14	C8H14

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Naming Straight Chain Alkanes

Naming Branched Chain Alkanes

Naming Simple Alkenes

Naming Structural Isomers of Alkanes

Naming Structural Isomers of Alkenes

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Naming Haloalkanes

Carboxylic (alkanoic) Acids

Amines

Functional Groups

Combustion of Hydrocarbons

Halogenation of Hydrocarbons

Hydrohalogenation of Unsaturated Hydrocarbons

Preparation and Naming of Polymers (Polymerization)

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