{
  "id": "1f011c4c-5f43-5f3e-873c-b5e70877f6ed",
  "slug": "electrolysis",
  "title": "Electrolysis",
  "course": "General Chemistry",
  "questionCount": 15,
  "page": "https://splycr.com/general-chemistry/electrolysis",
  "data": "https://splycr.com/library/electrolysis.json",
  "play": "https://splycr.com/?set=1f011c4c-5f43-5f3e-873c-b5e70877f6ed",
  "source": {
    "name": "Biology by Bradford",
    "href": "https://www.biologybybradford.com",
    "note": "Written for the splycr library by Biology by Bradford."
  },
  "questions": [
    {
      "number": 1,
      "question": "Decomposing a molten or dissolved ionic compound using a direct current?",
      "answer": "Electrolysis",
      "wrongOptions": [
        "Distillation",
        "Combustion",
        "Neutralisation"
      ]
    },
    {
      "number": 2,
      "question": "Negative electrode?",
      "answer": "Cathode",
      "wrongOptions": [
        "Anode",
        "Electrolyte",
        "Terminal"
      ]
    },
    {
      "number": 3,
      "question": "Positive electrode?",
      "answer": "Anode",
      "wrongOptions": [
        "Cathode",
        "Electrolyte",
        "Terminal"
      ]
    },
    {
      "number": 4,
      "question": "Molten or dissolved ionic compound that is broken down?",
      "answer": "Electrolyte",
      "wrongOptions": [
        "Electrode",
        "Solvent",
        "Insulator"
      ]
    },
    {
      "number": 5,
      "question": "Name for positive ions, which move to the negative electrode?",
      "answer": "Cations",
      "wrongOptions": [
        "Anions",
        "Electrons",
        "Neutrons"
      ]
    },
    {
      "number": 6,
      "question": "An ionic compound must be molten or dissolved so its ions are…?",
      "answer": "Free to move",
      "wrongOptions": [
        "Neutralised",
        "Bigger",
        "Uncharged"
      ]
    },
    {
      "number": 7,
      "question": "Product at the cathode when molten PbBr₂ is electrolysed?",
      "answer": "Lead",
      "wrongOptions": [
        "Bromine",
        "Hydrogen",
        "Oxygen"
      ]
    },
    {
      "number": 8,
      "question": "Product at the anode when molten PbBr₂ is electrolysed?",
      "answer": "Bromine",
      "wrongOptions": [
        "Lead",
        "Oxygen",
        "Hydrogen"
      ]
    },
    {
      "number": 9,
      "question": "Gas formed at the cathode when brine (concentrated NaCl solution) is electrolysed?",
      "answer": "Hydrogen",
      "wrongOptions": [
        "Sodium",
        "Chlorine",
        "Oxygen"
      ]
    },
    {
      "number": 10,
      "question": "Gas formed at the anode when brine is electrolysed?",
      "answer": "Chlorine",
      "wrongOptions": [
        "Oxygen",
        "Hydrogen",
        "Nitrogen"
      ]
    },
    {
      "number": 11,
      "question": "Solution left after brine is electrolysed?",
      "answer": "Sodium hydroxide",
      "wrongOptions": [
        "Sodium chloride",
        "Hydrochloric acid",
        "Sodium carbonate"
      ]
    },
    {
      "number": 12,
      "question": "Metal extracted by electrolysing its molten oxide dissolved in cryolite?",
      "answer": "Aluminium",
      "wrongOptions": [
        "Iron",
        "Copper",
        "Zinc"
      ]
    },
    {
      "number": 13,
      "question": "Carbon anodes in aluminium extraction wear away because they react with…?",
      "answer": "Oxygen",
      "wrongOptions": [
        "Aluminium",
        "Cryolite",
        "Hydrogen"
      ]
    },
    {
      "number": 14,
      "question": "Half-equation at the cathode when copper is deposited from Cu²⁺ ions?",
      "answer": "Cu²⁺ + 2e⁻ → Cu",
      "wrongOptions": [
        "Cu²⁺ → Cu + 2e⁻",
        "Cu²⁺ + e⁻ → Cu",
        "Cu → Cu²⁺ + 2e⁻"
      ]
    },
    {
      "number": 15,
      "question": "Gain of electrons at the cathode?",
      "answer": "Reduction",
      "wrongOptions": [
        "Oxidation",
        "Neutralisation",
        "Combustion"
      ]
    }
  ]
}