Which of the following is an alcohol?
Methanol
Butene
Propane
Which functional group is present in all alcohols?
-COOH
-OH
-C=C-
What is the name of the alcohol which has three carbon atoms in each molecule?
Ethanol
Propanol
What is the formula of butanol, which has four carbon atoms in each molecule?
C4H9OH
C4H7OH
C4H5OH
Which of these could be produced when butanol is oxidised?
Methanoic acid
Butanoic acid
What is the word equation for the production of ethanol by fermentation?
glucose → ethanol + carbon dioxide
glucose + oxygen → carbon dioxide + water
glucose → ethanol + oxygen
Which of the following is an essential condition for the fermentation of glucose by yeast?
No air/oxygen
60 °C
High pressure
What will be seen if propanoic acid is added to a solution of sodium carbonate?
A colour change from orange to colourless
Fizzing
A white precipitate
When measuring the energy released by burning different alcohols, what measurements should be recorded?
The distance between the alcohol burner and the bottom of the metal can
The time that the spirit burner is burning and the room temperature
The mass change of the burner and the temperature change of the water
When measuring the energy released by burning different alcohols, what is the largest source of error?
Using a measuring cylinder to measure the correct volume of water
Heat loss to the surroundings
Using a top pan balance to measure the mass change of the alcohol burner