The decolourization of purple colour of tetraoxomanganate (VII) ion is a test for? By: Sunday|Published on: Oct 14|Categories: Chemistry JAMB| 0 comments A. alkenes B. alkanols C. alkanals D. alkanes Correct Answer: Option A – alkenes Users Also Read These:Assuming that in sheep, the allele for black coat…A purple colour was obtained when sodium hydroxide…A certain savanna grasshopper changes colour from…Charcoal is used in the decolourization of sugar…The following will decolourize acidified potassium…SEE ALSO When chlorine water is exposed to bright sunlight, the following products are formed?