Cracking and Polymers

• What does crude oil contain a larger proportion of compared to the demand for smaller alkanes?

  Large alkanes
• What is the process of cracking in relation to alkanes?

  Cracking converts larger alkanes into smaller alkanes and alkenes
• What is an example of a cracking reaction involving a large alkane?

  $C_{20}H_{42} \rightarrow C_{2}H_{6} +$$CH_{4}$
• What type of hydrocarbons are saturated?

  Only single bonds
• What characterizes unsaturated hydrocarbons?

  They contain at least one double bond
• What is the relationship between large alkanes and alkenes in the cracking process?

  One large alkane produces one alkane and one or more alkenes
• What is butane classified as?

  An alkane and saturated
• What is butene classified as?

  An alkene and unsaturated
• What are the main products of cracking crude oil?

  • Smaller alkanes
  • Alkenes
• What are some examples of products derived from crude oil?

  Petrol, naphtha, kerosene, gas oil, fuel oil
• What is the primary use of petrol derived from crude oil?

  Fuelling vehicles
• What is the purpose of cracking in the context of crude oil processing?

  To meet the demand for smaller alkanes and alkenes