Question

Describe different types of electronic transition in a molecule . Which type of transition is responsible for a bond at lambda max= 279 in absorption spectrum of acetone

Answer 1

ionic bond , covalent bond , coordinate covalent bond

Answer 2

Hey dear,

● Electronic transitions -
These involve transition of electron from bonding to antibonding orbital.
There are 4 types of electron transitions -
1) σ → σ* (alkanes)
2) n → σ* (oxygen, nitrogen, sulphur)
3) n → π* (carbonyl compounds)
4) π → π* (unsaturated compounds)
5) σ → π* (carbonyl compounds)

# Electronic transition at λmax = 279 nm -
n → π* transition





Hope this helps you.
Thanks for asking..