Find the number of correct statements ? (a) Pd(II) and Pt(II) form mostly the 4-coordination, square planar, diamagnetic co-ordination entities. (b) The free ions Pd^(+2), Pt^(+2)" and " Ni^(+2) are paramagnetic in ground states. (c ) Octahedral [Co(H_(2)O)_(6)]^(+2) is pink, that of tetrahedral [CoCl_(4)]^(2-) is blue (d) Delta_(0)=(4)/(9) Delta_(t) (e ) If a multidentate ligand happens to be cyclic and there are no unfavourable steric effects a further increase in stability occurs. This is termed as macrocyclic effect.

Find the number of correct statements ? (a) Pd(II) and Pt(II) form mo

1.	Find the number of correct statements ? (a) Pd(II) and Pt(II) form mostly the 4-coordination, square planar, diamagnetic co-ordination entities. (b) The free ions Pd^(+2), Pt^(+2)" and " Ni^(+2) are paramagnetic in ground states. (c ) Octahedral [Co(H_(2)O)_(6)]^(+2) is pink, that of tetrahedral [CoCl_(4)]^(2-) is blue (d) Delta_(0)=(4)/(9) Delta_(t) (e ) If a multidentate ligand happens to be cyclic and there are no unfavourable steric effects a further increase in stability occurs. This is termed as macrocyclic effect.
Answer» SOLUTION :(d) is correct. Correct is `Delta_(t)=(4)/(9)Delta_(0)`