When acidified KMnO4 solution is decolorised by ethene, the gas acts as

When acidified KMnO₄ solution is decolorised by ethene, the gas acts as

Answer Details

When acidified KMnO₄ solution is decolorised by ethene, it means that ethene is oxidised to a colorless compound and KMnO₄ is reduced. Therefore, ethene is acting as a reducing agent. So, the correct option is (c) a reducing agent.