Which of the following is present at the time of cracking of hydrocarbons?

Zeolite

Zeolites used in catalytic cracking are designed to provide high percentages of hydrocarbons containing between 5 and 10 carbon atoms, which are very beneficial for petrol. A hydrogen atom from an alkane as well as the two electrons that bonded it to the carbon can be extracted from the molecule using the zeolite catalyst's elimination sites.