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The d-and f-Block Elements

Electronic Configurations of the d-Block Elements

The colour of {KMnO}_{4} is due to

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The colour of $KMnO_{4}$ is due to

Name: Video solution 1: The colour of KMnO4 is due to
Uploaded: 2022-11-08T14:32:44.000Z
Duration: 11 min
Description: Video solution 1: The colour of KMnO4 is due to

M \to L

charge transfer transition

d - d

transition

L \to M

charge transfer transition

σ - σ \dot{transition}

Views: 5,500 students

Updated on: Apr 10, 2023

Book:

Arihant Chemistry JEE Main Chapterwise Solutions (2019-2002) (Arihant)

Exam:

JEE Mains 2015

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The colour of

KMnO_{4}

is due to

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Text solutionVerified

KMnO_{4} ⟶ K^{+} + MnO_{4}^{-}

∴

MnO_{4}^{-}, Mn

has

+ 7

oxidation state having no electron in

d

-orbitals. It is considered that higher the oxidation state of metal, greater is the tendency to occur

L \to M

charge transfer, because ligand is able to donate the electrons into the vacant

d

- orbital of metal. Since, charge transfer is Laporte as well as spin allowed, therefore, it shows colour. If oxidation state is highest and ligand present there is of electron donating nature, gives LMCT, which shows more intense colour.

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Question Text	The colour of $KMnO_{4}$ is due to
Updated On	Apr 10, 2023
Topic	The d-and f-Block Elements
Subject	Chemistry
Class	Class 12
Answer Type	Text solution:1 Video solution: 2
Upvotes	241
Avg. Video Duration	9 min

The colour of $KMnO_{4}$ is due to

Text solutionVerified

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The colour of $KMnO_{4}$ is due to