Ethene decolourises acidified potassium tetraoxomanganate(VII) solution. Which gas will decolourise bromine water? by Sunday | Apr 19 | Chemistry NECO | 0 comments A. CH4 B. C2H6 C. C3H6 D. C3H8 E. C6H6 Correct Answer: Option C – C3H6 Users Also Read These:When excess ethene is shaken with acidified KMnO4…The colour of the solution formed when ethyne reacts…When acidified KMnO4 solution is decolorised by…A hydrogen chloride gas reacted with oxygen gas to…The following compounds decolourize acidified…