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:The salt that reacts with dilute hydrochloric acid…When bromine is added to ethene at room temperature,…When substance X was added to a solution of bromine…When excess ethene is shaken with acidified KMnO4…The colour changes observed when testing for…