If humid air is polluted by chlorine discharged, the air ...
If humid air is polluted by chlorine discharged, the air can be restored by sprinkling
solid MnO2
acidified KMnO4
acidified FeSO4
saturated NaCl(aq)
Correct answer is B
Chlorine is a toxic gas and when it pollutes the air, it can be neutralized by using acidified KMnO4. The reaction between chlorine and acidified KMnO4 results in the formation of chloride ions, manganese(II) ions, and water, which are harmless. This is why acidified KMnO4 is used to restore air polluted by chlorine discharge.
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