Testing Biofuels: Ethanol vs. Petrol

The video explores the efficiency of alternative biofuels like ethanol and biogas compared to petrol. It demonstrates the process of making ethanol from beetroot and tests its performance against petrol in mopeds. The video also investigates biogas production from waste and its use in vehicles, highlighting its environmental benefits.

What is the main idea being investigated in the experiment?

• The efficiency of alternative biofuels compared to petrol

• The efficiency of electric cars

• The cost of petrol

• The environmental impact of diesel

What is the primary ingredient used to make ethanol in the experiment?

• Sugarcane

• Potatoes

• Corn

• Beetroot

What is the purpose of adding yeast during the ethanol production process?

• To distill the ethanol

• To ferment the sugar into ethanol

• To purify the ethanol

• To extract sugar

What was the result of the performance test between ethanol and petrol in mopeds?

• Both had the same performance

• Ethanol was faster

• Petrol was faster

• Neither completed the test

Which fuel was found to be more economical in terms of cost?

• Neither was economical

• Petrol

• Both were the same

• Ethanol

What is the main advantage of using ethanol over petrol in terms of pollution?

• Ethanol is not used for pollution control

• Ethanol pollutes more

• Ethanol pollutes less

• Both pollute the same

What is biogas primarily made from?

• Organic waste

• Wind energy

• Fossil fuels

• Solar energy

What is the main component of biogas?

• Oxygen

• Hydrogen

• Methane

• Nitrogen

How does biogas compare to petrol in terms of CO2 emissions?

• Biogas emits more CO2

• Biogas emits less CO2

• Biogas does not emit CO2

• Both emit the same amount of CO2

What is the overall conclusion about biofuels compared to petrol?

• Biofuels are less efficient and more polluting

• Biofuels are nearly as efficient and less polluting

• Biofuels are not suitable for use in vehicles

• Biofuels are more efficient but more polluting