Hydrocarbons nomenclature

Presentation

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Chemistry

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11th Grade

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Practice Problem

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Medium

Sandra Lizeth Iturbe Requena

Used 364+ times

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10 Slides • 10 Questions

Hydrocarbons
Nomenclature

Hydrocarbons are classified as:

Alkanes
Alkenes
Alkynes

Multiple Choice

Choose the alkane

Multiple Choice

Choose the alkene

Multiple Choice

Choose the alkyne

Naming linear hydrocarbons

Prefixes for carbon atoms

Compounds with single bonds are alkanes: -ane
Compounds with double bonds are alkenes: -ene
Compounds with triple bonds are alkynes: -yne

Therefore a hydrocarbon with 2 carbons is:

Alkane: ETHANE
Alkene: ETHENE
Alkyne: ETHYNE

Multiple Choice

What is the name of 4 carbons alkane?

Butane

Butyne

Butene

Multiple Choice

What is the name of 11 carbons alkyne?

Undecyne

Undecane

Undecene

Multiple Choice

What is the name of this compound?

octane

octyne

In nomenclature of unsaturated hydrocarbons (alkenes and alkynes) you must consider the position of bonds

The main chain will be the one with double or triple bonds, highest number of carbon atoms and more branches.
The numbering must start from the end closest to the double/triple bond.

Start numbering from the end nearer the double bond

The locator for the bond is the lowest number.
Alkenes or alkynes with two or three carbons do not need numbers.
The name of this alkene is 2-heptene or hept-2-ene.

The name of this alkyne is ...

3-nonyne or non-3-yne.

Multiple Choice

Choose the name of the compound

3-butyne

2-butyne

3-butene

2-butene

Multiple Choice

Choose the name of the compound

1-propene

2-propene

propane

2-propyne

Multiple Choice

Choose the name of the compound

4-octyne

5-octyne

4-octene

5-octene

Multiple Choice

Choose the name of the compound

2-pentyne

3-pentyne

2-pentene

3-pentene

You got this, nicely done!

Hydrocarbons
Nomenclature

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