Test: Petroleum, Fractional Distillation & Octane Number - JAMB MCQ

Crude oil is a complex mixture of hydrocarbons with varying molecular weights.

The properties of hydrocarbons that determine their use as different fractions include boiling point, viscosity, and density.

The process of breaking down larger hydrocarbon molecules into smaller ones is called cracking.

Ethanol is not a major product obtained from petroleum. It is typically produced through fermentation or other bio-based processes.

Petrochemicals are primarily used as starting materials for organic syntheses, allowing the production of a wide range of chemicals and materials.

Cracking is the process used to convert low-value fractions of petroleum into higher-value ones by breaking larger hydrocarbons into smaller, more useful ones.

The quality of petrol is often assessed using the octane number, which measures its resistance to knocking.

The octane number of petrol indicates its anti-knock properties. Higher octane numbers indicate better resistance to knocking.

The octane number is a measure of the knock resistance of petrol.

Lubricating oil has the highest boiling point among the given options.