The sodium chloride melt was subjected to electrolysis. The gas released at the anode reacted with hydrogen to form a new gaseous substance with a characteristic pungent odor. It was dissolved in water and treated with a calculated amount of potassium permanganate, while a yellow-green gas was formed. This substance reacts on cooling with sodium hydroxide. Write the equations for the described reaction.
2NaCl → 2Na + Cl2
Cl2 + H2 → 2HCl
16HCl + 2KMnO4 → 2MnCl2 + 5Cl2↑ + 2KCl + 8H2O
Cl2 + 2NaOH → NaCl + NaClO + H2O
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