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
How to rewise organic chemistry?
its easy.Firs
ANKIT 3 months ago
Which of the following names are correct as per IUPAC norms? 2,6,6-trimethyloctane 3,3,7-trimethyloctane Pent-4-en-2-yne Diethyl ether
3 and 4 are incorrect. But in case of 1& 2, 1 is given correct in a book reasoning first locant (here methyl group) should get lowest number (3) whereas in 2 nd first locant gets 3 which is...
Himaja 2 months ago
Lowest locant rule is violated in compunds one and third,fourth is common name and not IUPAC name,hence second compound is the correct answer
Harihara Narayanan 2 months ago
The second compound would be the right answer as first one and the third violates the lowest sum rule and the last one is a common name.
Havishma Haranath 2 months ago
convert acetic acid to acetylene
Firsrt convert Acetic Acid to methane CH3COOH + NaOH (CaO) -------> CH4 + By products In this reaction NaOH first converts acetic acid to its salt and then CaO decarboxylates it to...
Harishwar 4 months ago
better is to first convert acid to ethane by treating it with HI+red P and then chlorinating on both the carbons and then treating it with two moles of NaNH 2.
daksh 2 months ago
Plz explain me what are azide compounds???
Azideis theanionwith the formula N3−. It is theconjugate baseofhydrazoic acid(HN3). N3−is a linear anion that isisoelectronicwithCO2andN2O. Pervalence bond theory, azide can be...
Sunil Kumar FP 5 months ago
Among the following compound the most volatile is HCl.The volatility of compound id its property to have high vapour pressure at ordinary temperature. The order is HCl<HBr<HI<HF HF...
Sunil Kumar FP 4 months ago
View all Questions »