Browse by Stream
QnA
Home
QnA
Go To Your Study Dashboard

Get Answers to all your Questions

header-bg qa
  • Home
  • Medical
  • Which transition metal ion forms a purple-coloured compound when combined with a ligand?Option: 1 Iron (Fe)

Which transition metal ion forms a purple-coloured compound when combined with a ligand?

Option: 1

Iron (Fe)


Option: 2

Copper (Cu)


Option: 3

Chromium (Cr)


Option: 4

Cobalt (Co)


Answers (1)

best_answer

When transition metal ions form complexes with ligands, the d-orbitals split into different energy levels due to the crystal field effect. The absorption of certain wavelengths of light by these complexes leads to the observation of colour. The splitting of d-orbitals determines the energy difference between them, which in turn determines the colour of the complex.

In the case of chromium, it forms coloured ions due to the presence of unpaired electrons in its d-orbitals. The energy difference between these orbitals corresponds to absorption in the visible light region, resulting in the observed colour. For example, when chromium forms a complex with a ligand, such as water, the hydrated chromium ion \left [ Cr\left ( H_{2}O \right )_{6} \right ]^{3+} exhibits a purple colour.

 

Posted by

Gaurav

View full answer

NEET 2024 Most scoring concepts

    Just Study 32% of the NEET syllabus and Score up to 100% marks

Similar Questions

Trending Articles/News

anam-khan

NEET paper solver gang busted in Delhi, four held
anam-khan

PIL in Patna HC seeks CBI probe into ‘NEET paper leak case’, cancellation of exam
anam-khan

NEET UG 2024: SC refuses to stay result declaration over alleged paper leak

Latest Question