What is the primary product of the electrolysis of aqueous NaCl?

Practice Questions

Q1
What is the primary product of the electrolysis of aqueous NaCl?
  1. Hydrogen gas
  2. Chlorine gas
  3. Sodium hydroxide
  4. Sodium chloride

Questions & Step-by-Step Solutions

What is the primary product of the electrolysis of aqueous NaCl?
  • Step 1: Understand that electrolysis is a process that uses electricity to break down a substance.
  • Step 2: Know that aqueous NaCl means salt (sodium chloride) is dissolved in water.
  • Step 3: Identify the two electrodes used in electrolysis: the anode (positive electrode) and the cathode (negative electrode).
  • Step 4: At the anode, chloride ions (Cl-) from the NaCl solution are oxidized, meaning they lose electrons.
  • Step 5: When chloride ions lose electrons, they form chlorine gas (Cl2).
  • Step 6: Therefore, the primary product at the anode during the electrolysis of aqueous NaCl is chlorine gas.
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