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Electrolysis of aqueous solutions

Quiz by Oak National Academy: GCSE Combined Science OCR Foundation

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6 questions
Show answers
  • Q1
    What is an ion and how is it formed?
    It is a neutral particle formed by an atom gaining or losing electrons.
    It is a neutral particle formed by an atom gaining or losing neutrons.
    It is a charged particle formed by an atom gaining or losing proton.
    It is a charged particle formed by an atom gaining or losing electrons.
    30s
  • Q2
    What does the law of conservation of mass state?
    Mass is always lost in a chemical reaction, reducing reactants.
    Mass is neither created nor destroyed in a chemical reaction.
    Mass can be created and destroyed, allowing for new matter.
    30s
  • Q3
    What is electrolysis and what is its purpose?
    It is a technique for measuring the mass of an element.
    It is a process that uses electric current to drive a chemical reaction.
    It is a method of mixing substances to form a solution.
    It is the flow of electrons in a circuit.
    30s
  • Q4
    What is an aqueous solution?
    It is a solution in which a substance is dissolved in alcohol.
    It is a substance in its liquid state.
    It is a solution in which a substance is dissolved in acid.
    It is a solution in which a substance is dissolved in water.
    30s
  • Q5
    What is the role of the anode in electrolysis?
    It is the negatively charged electrode where reduction occurs.
    It is the positively charged electrode where oxidation occurs.
    It is where the electrolyte is added.
    30s
  • Q6
    What is the role of the cathode in electrolysis?
    It is the positively charged electrode where oxidation occurs.
    It is the negatively charged electrode where reduction occurs.
    It is where the electrolyte is added.
    30s

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