Question
Question: The aqueous solution of the following salts will be coloured in the case of :...
The aqueous solution of the following salts will be coloured in the case of :
A
Zn (NO3)2
B
LiNO3
C
Co(NO3)2
D
Potash alum
Answer
LiNO3
Explanation
Solution
(1) Associated with d-d transition of electron.
(2) The transition metals form the reaction intermediates due to the presence of vacant orbitals or their tendency to form variable oxidation states.
(3) Associated with the number of unpaired electrons participating in metallic bonding.
(4) As m =n(n+2), so it is associated with number of unpaired electron.