In electrolysis, what is produced at the anode when NaCl solution is electrolyze

Practice Questions

Q1
In electrolysis, what is produced at the anode when NaCl solution is electrolyzed? (2022)
  1. Hydrogen gas
  2. Chlorine gas
  3. Sodium metal
  4. Oxygen gas

Questions & Step-by-Step Solutions

In electrolysis, what is produced at the anode when NaCl solution is electrolyzed? (2022)
  • Step 1: Understand that electrolysis is a process that uses electricity to break down a substance.
  • Step 2: Know that NaCl solution is a mixture of sodium chloride (table salt) and water.
  • Step 3: Identify the two electrodes used in electrolysis: the anode (positive electrode) and the cathode (negative electrode).
  • Step 4: Remember that during electrolysis, different substances are produced at the anode and cathode.
  • Step 5: At the anode, chloride ions (Cl-) from the NaCl solution lose electrons and are oxidized.
  • Step 6: The oxidation of chloride ions produces chlorine gas (Cl2) at the anode.
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