In the compound lithium aluminium tetrahydride,the ligand is.......

Select the correct statements about the $PtCl_4 \cdot 4NH_3$ complex salt:
$I.$ All the chlorides are bonded by primary valency.
$II.$ All the chlorides are bonded by secondary valency.
$III.$ All the $NH_3$ are bonded by secondary valency.
$IV.$ Half of the chlorides are bonded with secondary valency.

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

Which among the following complexes is homoleptic and cationic in nature?

Assertion : Ethylenediaminetetraacetate ion forms an octahedral complex with the metal ion.
Reason : It has six donor atoms which coordinate simultaneously to the metal ion.

Explain homoleptic and heteroleptic complexes.