which one of the following complexes will most likely absorb visible light [sc(H2O6)]3+ [Ti(NH3)6]4+ [Zn(NH3)6]2+ [V(NH3)6]3+ - Chemistry - Chemical Bonding and Molecular Structure

Question

which one of the following complexes will most likely absorb
visible light [sc(H2O6)]3+ [Ti(NH3)6]4+ [Zn(NH3)6]2+
[V(NH3)6]3+

Kumar Sarang · Accepted Answer

which one of the following complexes will most likely absorb
visible light

[Sc(H2O)6]3+
Outer configuration
Sc3+= 4s0 3d0 (absence of electron
and hence no colour in visible reason)

[Ti(NH3)6]4+
Outer configuration
Ti4+ = 4s0 3d0 (absence
of electron and hence no colour in visible reason)

[Zn(NH3)6]2+
Outer configuration
Zn2+ = 4s0 3d10 (absence of
unpaired electron and hence no colour in visible reason)

[V(NH3)6]3+
Outer configuration
V3+ = 4s0 3d2 ( presence of
unpaired electron and hence show d-d transition due to which it
show colour in visible reason)