4. "zn* complexes are atypical of d-block complexes in general.'" which answer below is correct and supports this statement? [gate 2000] (1) zn2* complexes are

4. "Zn* complexes are atypical of d-block complexes in general.'" Which answer below is Correct and supports this statement? [GATE 2000] (1) Zn2* complexes are paramagnetic (2) Zn complexes tend to be colourless, unless the ligand contains a chromophore (3) Zn2 complexes are always octahedral (4) Zn2 is one of several common oxidation states of Zn