Fuels and Hydrocarbons

A hydrocarbon contains...

• hydrogen and oxygen

• hydrogen, carbon and oxygen

• hydrogen and carbon

• carbon only

Tags

NGSS.HS-LS1-6

what gas turns limewater cloudy?

• oxygen

• hydrogen

• carbon dioxide

when a hydrocarbon burns in a plentiful supply of oxygen what are the products?

• carbon dioxide only

• water only

• carbon dioxide and water

• carbon only

Hydrocarbons burning is an example of what type of chemical reaction ?

• neutralisation

• endothermic

• addition

• exothermic

What physical property allows Distillation to separate different molecules?

• Melting point

• Boiling point

• Diffusion rate

• Condensation rate

What does the viscosity of a hydrocarbon tell you?

• How easily it flows
• How easily it sets alight
• What its boiling point is
• How long the hydrocarbon is

The longer the hydrocarbon, the ________ the flammability?

• Lower
• Higher

What is the correct order for the fractions that come out of crude oil?

• fuel gases, petrol, kerosene, diesel, fuel oil, residue
• fuel gases, petrol, diesel, kerosene, fuel oil, residue
• fuel gases, kerosene, petrol, diesel, fuel oil, residue
• fuel gases, diesel, kerosene, petrol, fuel oil, residue

Which of these isn't in the fire triangle?

• Fuel
• Heat
• Oxygen
• Carbon dioxide

Another term for burning is

• Fire triangle
• Magnesium oxide
• Combustion
• Bustion