What type of reaction occurs at the positive electrode when copper sulfate is electrolysed using copper electrodes?
  • Oxidation
  • Reduction
  • Combustion
  • Decomposition
What type of reaction is shown by the following word equation? Hydrochloric acid + sodium hydroxide → sodium chloride + water
  • Decomposition
  • Displacement
  • Neutralisation
  • Combustion
What type of reaction does the following word equation describe? Magnesium + zinc chloride → magnesium chloride + zinc
  • Oxidation
  • Reduction
  • Thermal decomposition
  • Displacement
What type of reaction is shown in the symbol equation? Fe O + 3CO → 2Fe + 3CO
  • Oxidation
  • Combustion
  • Reduction
  • Decomposition
What is the only reaction that removes carbon dioxide from the atmosphere naturally?
  • Decomposition
  • Combustion
  • Respiration
  • Photosynthesis
What reaction is involved in the production of poly(ester)?
  • Cracking
  • Polymerisation
  • Decomposition
  • Neutralisation
What type of reaction occurs when limestone (calcium carbonate) is heated and becomes calcium oxide?
  • Oxidation
  • Reduction
  • Thermal decomposition
  • Combustion
What reaction is involved in the hardening of vegetable oils?
  • Polymerisation
  • Cracking
  • Hydrogenation
  • Setting
What reaction is occurring when decane is split into ethene and octane?
  • Cracking
  • Polymerisation
  • Reduction
  • Neutralisation
What type of reaction occurs when hydrocarbons burn in an insufficient supply of oxygen?
  • Combustion
  • Incomplete combustion
  • Reduction
  • Thermal decomposition
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