EASY
Diploma
IMPORTANT
Earn 100

Write the equation for photosynthesis.

Important Questions on Energy

EASY
Diploma
IMPORTANT

Explain why ethanol-based fuels are said to have a lower carbon footprint than petroleum-based fuels, even though they both release similar amounts of carbon dioxide on combustion.

MEDIUM
Diploma
IMPORTANT

Outline the reagents and conditions necessary to convert a vegetable oil to a usable fuel for a vehicle such as a car.

MEDIUM
Diploma
IMPORTANT
Explain why the transesterification process is necessary in producing biodiesel. Describe the disadvantages of using vegetable oils as fuels without processing them.
EASY
Diploma
IMPORTANT

Outline what is meant by a system of conjugated double bonds.

EASY
Diploma
IMPORTANT

Identify from the following structures which vitamins A, C, or D is most likely to appear as a colored compound. Explain your answer.

Question Image

EASY
Diploma
IMPORTANT

Write an equation for the fermentation of glucose.

EASY
Diploma
IMPORTANT

Write the general equation for transesterification.

EASY
Diploma
IMPORTANT

Deduce the number of molecules of ester and glycerol produced per molecule of a triglyceride undergoing transesterification.