Modification of alkanes by cracking

Chemistry · A-Level · AQA · AQA A-level Chemistry - (7405) · Specification point · 3.3.2.2 · Organic chemistry · Alkanes

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3.3.2.2 Modification of alkanes by cracking

Content	Opportunities for skills development
$Cracking involves breaking C-C bonds in alkanes. Thermal cracking takes place at high pressure and high temperature and produces a high percentage of alkenes (mechanism not required). Catalytic cracking takes place at a slight pressure, high temperature and in the presence of a zeolite catalyst and is used mainly to produce motor fuels and aromatic hydrocarbons (mechanism not required). Students should be able to: explain the economic reasons for cracking alkanes.$

Content

Opportunities for skills development

Cracking involves breaking C-C bonds in alkanes. Thermal cracking takes place at high pressure and high temperature and produces a high percentage of alkenes (mechanism not required). Catalytic cracking takes place at a slight pressure, high temperature and in the presence of a zeolite catalyst and is used mainly to produce motor fuels and aromatic hydrocarbons (mechanism not required). Students should be able to: explain the economic reasons for cracking alkanes.

Modification of alkanes by cracking (3.3.2.2) | AQA A-level Chemistry - (7405) | KnowledgeSet