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:A hydrogen chloride gas reacted with oxygen gas to…When excess ethene is shaken with acidified KMnO4…The following will decolourize acidified potassium…The colour changes observed when testing for…In the laboratory preparation of chlorine from…