In a coordination compound,the coordination number of the metal is equal to:

Metals have the tendency to lose electrons to form cations. When $Zn$ is added to $NaOH$,a complex is formed. In this complex,$Zn$ is present in:

Which of the following ligands are ambidentate?
$P: NO_3^-$,$Q: NO_2^-$,$R: CN^-$,$S: SCN^-$

$1 \ mol$ of an octahedral metal complex with formula $MCl_{3} \cdot 2 \ L$ on reaction with excess of $AgNO_{3}$ gives $1 \ mol$ of $AgCl$. The denticity of ligand $L$ is ...... . (Integer answer)

Trioxalato aluminate $(III)$ and tetrafluoro-borate $(III)$ ions are :

What type of ligand is the oxalate ion?