Which of the following is an oxidizing agent? - Vidyadip

MCQ

Which of the following is an oxidizing agent?

A
$Mn(CO)_5$
B
$Fe(CO)_5$
✓
$Mn_2(CO)_{10}$
D
$Fe_2(CO)_9$

✓

Answer

Correct option: C.

$Mn_2(CO)_{10}$

c
The color in $M n O 4^{-}$ arises from an electronic transition, but it is actually not a
d-d transition, since the Mn in this compound has 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 purple, the complementary color.

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