WAEC - Chemistry (2023 - No. 39)
Petrochemistry is an example of
applied chemistry
Biochemistry
Pure chemistry
Environmental chemistry
Explication
Applied chemistry refers to the practical application of chemical principles and techniques to solve real-world problems and create useful products. Petrochemistry is a branch of applied chemistry that deals specifically with the chemical processes and transformations involved in the extraction, refining, and processing of petroleum and its derivatives