1.

Which of the following decolourises a hot alkaline KMnO_4 solution?

Answer»

`CH_3 CH_2 CH_3`
`CH_4`
`CH_3 CH_3`
`(CH_3)_3 CH`

Solution :A `3^@` H-atom is most easily oxidised . Therefore during oxidation of `(CH_3)_(3)` CH to `(CH_(3))_(3) COH` the pink COLOUR of `KMnO_4` solution GETS discharged DUE to the formation of colourless `Mn^(2+)` ions.
`(CH_(3))_(3) CH^+[OH] overset("hot")underset(KMnO_(4))(to) (CH_(3))_(3) COH`


Discussion

No Comment Found