Electrolysis of aqueous solutions: 4.4.3 Electrolysis:
AQA Question & Accurate Answers: GCSE (9:1)
During the electrolysis of aqueous sodium chloride, what is produced at the cathode? correct answer
hydrogen gas
During the electrolysis of aqueous sodium chloride, what is produced at the anode? correct answer
oxygen gas
What is the test for hydrogen gas? correct answer a lit splint will make a squeaky pop
During the electrolysis of aqueous potassium chlorine, which of these is NOT a potential hazard? correct
answer potassium metal is produced, which will react with the water violently
A student wants to investigate the products of electrolysis of aqueous solutions. Which would be a
suitable voltage and type of power supply to use in this experiment? correct answer 12 Volts, D.C.
Which of these is always true for the electrolysis of aqueous solutions? correct answer A non-metal is
always formed at the anode
What is the formula of the product formed at the cathode during the electrolysis of aqueous magnesium
chloride? correct answer H₂
In the electrolysis of aqueous lead (II) sulfate, which statement is true? correct answer lead ions gain
electrons
What are the products of the electrolysis of aqueous lithium bromide? correct answer hydrogen and
bromine
What are the products of the electrolysis of aqueous sodium nitrate? correct answer hydrogen and
oxygen
