[14 Marks, each 2 Marks] Which of the following statements is true (T) and which one is false (F) a. One of the products of denitrogenation of pyridine () is ammonia (NH3)(). b. Visbreaking is a catalytic cracking operation ( ). c. Flexi-coking is a combination of thermal cracking and coke gasification/combustion ( ). d. Nearly 45%50% of the typical crude oils contain 370C+ fractions ( ). e. Hydrocracking is the conversion process of light petroleum fractions to heavy hydrocarbons ( ) f. The isomerization products contain high amount of benzene, aromatics and olefins ( ). g. The product from the catalytic polymerization unit (CPU) is known as Polygas ( )