The decolourization of purple colour of tetraoxomanganate (VII) ion is a test for
a
alkenes
b
alkanols
c
alkanals
d
alkanes
Explanation
Correct Option
aVideo Explanation
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Destinedtowin
4 years ago
When a purple solution of the oxidizing agent KMnO4 is added to an alkene, the alkene is oxidized to a diol and the KMnO4 is converted to brown MnO2. Thus, if the purple color changes to brown in this reaction, it is a positive reaction. The diol produced has two adjacent alcohol groups.
