The diagram below shows a simplified version of a fractionating column used in the petroleum industry.
The position marked ___ corresponds to the cracker where large molecules are broken into smaller molecules.

Question

The diagram below shows a simplified version of a fractionating column used in the petroleum industry. 
The position marked ___ corresponds to the cracker where large molecules are broken into smaller molecules.

Quizplus · Accepted Answer

Remember that the cracker will split compounds found lower in the column into two other portions.

The Diagram Below Shows a Simplified Version of a Fractionating