Organic Molecules (Grade 12 NSC Matric Physical Sciences): Flashcards

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Hydrocarbons
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Definition of a hydrocarbon

Organic molecule with only C and H atoms

General formula for alkanes

CnH2n+2C_nH_{2n+2}

General formula for alkenes

CnH2nC_nH_{2n}

General formula for alkynes

CnH2n−2C_nH_{2n-2}

Type of bonds in alkanes

Single bonds only

Type of bonds in alkenes

At least one double bond

Type of bonds in alkynes

At least one triple bond

Bromine water test for unsaturated hydrocarbons

Orange colour disappears (decolourisation)

What is a homologous series?

Series of compounds with same general formula

Which hydrocarbons are saturated?

Alkanes

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