Asked in PMC Practice Test 21 (2021) 2021Moderate

Which types of bonds are broken during cracking?

Correct answer: A. C-C

  • A. C-C
  • B. C-H
  • C. Both C-C and C-H
  • D. C-O

Explanation

The primary types of bonds that are broken during cracking are C-C bonds. Cracking involves the thermal decomposition of larger hydrocarbon molecules by breaking the carbon-carbon bonds, leading to the formation of smaller, more useful molecules. C-H bonds are generally not broken during the cracking process.Taken from a bookline in PTB

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About Alkanes

Alkanes are saturated hydrocarbons containing only carbon-carbon and carbon-hydrogen single bonds, with the general formula CnH2n+2 for open chains. Their structure, isomerism, IUPAC nomenclature, physical properties, combustion, free-radical halogenation and conformations are covered, including the difference between substitution in alkanes and addition in unsaturated hydrocarbons.

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