4. Draw linkage isomers and a crystal field splitting diagram for the tetrahedral complex [Mn(H₂O)3(SCN)]³+

(a) Name this coordination compound: [Ag(NH3)2]NO3. (b) Write the formula of pentaaquaisothiocyanatoiron(III) chloride.

The complex ion NiCL42 has two unpaired electrons, whereas Ni(CN)42 is diamagnetic. Propose structures for these two complex ions.

Specify whether the following complexes have isomers.. (a) tetrahedral [Ni(CO)2(Cl)2]. (b) trigonal bipyramidal [Mn(CO)4NO]. (c) [Pt(en)2Cl2]Cl2

Four different octahedral chromium coordination compounds exist that all have the same oxidation state for chromium and have H2O and Cl as the ligands and counterions. When 1 mole of each of the four compounds is dissolved in water, how many moles of silver chloride will precipitate upon addition of excess AgNO3?