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What makes the kmno4 in pink color?

What makes the kmno4 in pink color?

Grade:12

2 Answers

KLV SAI VARDHAN REDDY
32 Points
9 years ago

Mn+2 ion in the solution makes KMnO4 IN PINK

JAYANT ARORA
37 Points
9 years ago

The color in KMnO4 arises from an electronic transition, but it is actually not a d-d transition, since the Mn in this compoundhas no d electrons. It arises from a charge transfer reaction within the molecule, in which photons promote an electron from the highest energy molecular orbital in one of the Mn- O bonds to an empty d orbital on the manganese. This promotion is equivalent to the energy of a yellow photon, so yellow light is absorbed leaving us to see pink , the complementary color.

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