Multiple choice

Which of the following statements is not correct about the process of 'cracking' in the petrochemical industry?

  1. It requires high temperature.
  2. In catalytic cracking much lower pressure is required than thermal cracking.
  3. It converts small hydrocarbons to more useful bigger hydrocarbons.
  4. Petrol obtained from vapour phase cracking has better anti-knock properties than petrol from liquid phase cracking.

  1. Only 1

  2. Only 1 and 2

  3. Only 2 and 3

  4. Only 3

  5. Only 3 and 4
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

This option is correct because Cracking is the decomposition of bigger hydrocarbon molecules into simpler, low boiling hydrocarbons of lower molecular weight.

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