Understanding Crude Oil and Hydrocarbons

What is the primary method used to separate different hydrocarbons in crude oil?

• Fractional distillation

• Condensation

• Filtration

• Cracking

Which type of hydrocarbon is most flammable?

• Short-chain hydrocarbons

• Saturated hydrocarbons

• Long-chain hydrocarbons

• Unsaturated hydrocarbons

What does the process of cracking involve?

• Separating hydrocarbons

• Combining hydrocarbons

• Condensing hydrocarbons

• Breaking down hydrocarbons

What is used as a catalyst in catalytic cracking?

• Potassium oxide

• Aluminium oxide

• Calcium carbonate

• Sodium chloride

What is the main purpose of steam in steam cracking?

• To help split the hydrocarbon chains

• To pressurize the system

• To act as a catalyst

• To cool down the hydrocarbons

What must be balanced in the chemical equations used in cracking?

• Only hydrogens

• Neither carbons nor hydrogens

• Only carbons

• Both carbons and hydrogens

Which hydrocarbon is used as an example in the cracking process?

• Methane

• Ethane

• Propane

• Decane

What is the result of cracking decane in terms of products?

• Propane and heptene

• Heptane and propine

• Butane and hexene

• Ethene and octane

What type of bond is present in alkenes?

• Ionic bond

• Double bond

• Single bond

• Triple bond

What is the test for alkenes?

• Heating

• Adding bromine water

• Electrolysis

• Freezing