Respected, Membars and Teacher plz explain What is d-d transmision and also f-f transmision? And give the reason why transition elements are colured? Thanks

2 years ago


Answers : (2)


Acc to the the crystal feld theory,in the presence of a ligand atom the d subshell splits into two subshells called eg and t2g (g stands fr gerade). When an electron jumps frm eg to t2g  or vice versa it is called d-d transition. Due to this transition, the complexes r able to absorb and emit light light of a certain energies (depending on the CSE), thats why they r coloured compounds 

2 years ago

Transition elements are coloured due to the presence of unpaired electrons in the d orbit.

These unpaired electrons undergo transition within the d orbitals. ie.

When the electron moves from one orbital to another energy is released as em waves in visible spectrum. This movement of electrons occurs as the d orbitals has similar energy.

2 years ago

Post Your Answer

More Questions On Organic Chemistry

Ask Experts

Have any Question? Ask Experts
Post Question
Answer ‘n’ Earn
Attractive Gift
To Win!!!
Click Here for details
if the solubility product of BaSO 4 is 1.5*10 -10 in water. It’s solubility , in moles per litre is
BaSO4 ionises to give – BaSO4 Ba 2+ + SO 4 2-- Suppose solubility of BaSO4 is s mol/l.It would give s mol/l of Ba2+ ions and s mol/l of SO4 2- ions on dissociation. Now, solubility...
Aarti Gupta one month ago
BaSO4<............>Ba+..+..SO4- C........................0...........0.......(intially) C-s.....................s..............s........(at equilibrium) where s is the...
Naveen Kumar one month ago
is solutions avalible for this book
Dear student, please clearly mention the book name and author name. Hope you will post the complete question....
Ramreddy 2 months ago
expalin optical nisomerism and its types with neat and clean figure?
An enantiomer (optical isomer) is one of two stereoisomers that are mirror images of each other that are non-superposable (not identical), much as one's left and right hands are the same...
Raheema Javed 14 days ago
Stereomers are the compound having the same formula but they differ in configuration,the arrangement of atom in space.The two type of stereoisomer are:- (1)geometrical (2)optical OPTICAL...
Sunil Kumar FP one month ago
why are halogen so reactive?
Atoms of elements consist of a nucleus that contains protons and neutrons. The nucleus is surrounded by electrons that move around in orbits or levels. Atoms of an element react with other...
Raheema Javed 14 days ago
Hi Student The Group 7 elements are also known as the halogens. They include fluorine, chlorine, bromine and iodine, which all have seven electrons in their outer shell i.e They only need...
Anjali Ahuja 14 days ago
Explain this statement “The electromagnetic theory also predicts that me frequency of radition emitted by a revolving charged body is equal to the frequency of revelution. In ruther ford’s...
yes that is for sure. and this is what called the drawback of the rutherford model of atom. Because if it will move continuosly with change in angular frequency it will emit energy and thus...
Suraj Prasad one month ago
Yes, I know that it is drawback of rutherford model of atom but I cant understand the above statement can you elabrate!
Vineeth one month ago
View all Questions »