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Worksheets9QT Ethanol and its reactions
Total questions: 13
Worksheet time: 13mins
Select all of these following that are methods to make ethanol.
Dehydration of ethene
Addition of water to ethene
Fermentation of sugars with yeast
Distillation of sugars
Name this compound...
methane
methene
methanol
methoxymethane
What is the molecular formula of propanol?
C3H8O
C3H7O
C2H6O
C4H10O
Which is the correct functional group in alcohols?
C=C
OH
COOH
They don't have a functional group
Ethanol is produced by fermentation.
which of the following conditions is not required to produce ethanol by fermentation?
Temperature between 30-35 °C
Yeast
Presence of Oxygen
Sugar or starch dissolved in water
SO2 + H2O
H2O
CO
CO + H2O
CO2 + H2O
Ethanol is made by reacting ethene with steam.
Ethanol is also made by the fermentation of sugar obtained from plants.
Which statement is correct?
Fermentation is a faster process than reacting ethene and steam.
Fermentation produces ethanol from a renewable source.
Reacting ethene with steam produces impure ethanol.
Reacting ethene with steam uses very little energy.
Which term describes the formation of ethanol from glucose?
Cracking
Distillation
Fermentation
Polymerisation
Ethanol can be formed by:
1 Fermentation
2 Reaction between steam and ethene
Which of these processes uses a catalyst?
1 & 2
1 only
2 only
Neither 1 nor 2
The flow chart shows the preparation of ethanol and some important chemistry of ethanol.
What are X, Y and Z?
X: Ethane
Y: Combustion
Z: Yeast
X: Glucose
Y: Combustion
Z: Steam
X: Water
Y: Polymerisation
Z: Water
X: Yeast
Y: Fermentation
Z: Glucose
Complete combustion of ethanol gives (a) and water as the products
Butanol is a member of the homologous series alcohols.
which one of the following is not a formula of butanol?
C4H10O
C4H10OH
C4H9OH
CH3CH2CH2CH2OH
