Chemistry
Grade-8
Easy

Question

Which out of the following statements is true about the above given reaction?
2NaCl→2Na+Cl2

  1. Sodium chloride decomposes only after 200oC
  2. Sodium and chloride also can be separated by evaporation of NaCl
  3. The given chemical reaction is reversible
  4. The electricity is passed in the molten sodium chloride to get sodium and chlorine

hintHint:

The NaCl molecule breaks downs into its components.

The correct answer is: The electricity is passed in the molten sodium chloride to get sodium and chlorine


    • When an electric current is passed through molten sodium chloride, Na+ ions are reduced at the cathode (cathode), thus sodium is deposited at the cathode, and Cl- is deposited at the cathode.
    • As the ions are oxidized at the positive electrode (anode), chlorine gas is formed at the anode.

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