Which of the following statements best explains cracking? It is a process

• A. in which an alkene adds on itself repeatedly to form long-chain polymers.
• B. in which large hydrocarbon molecules are broken into smaller units.
• C. for measuring the octane number of petrol.
• D. in which carbon chain results in a zig-zag arrangement

Correct Answer: B. in which large hydrocarbon molecules are broken into smaller units.