What Colour is Fe h20 6 2+?

pale green
(i) [Fe(H2O)6]2+ is pale green, [Fe(H2O)6]3+ is yellow.

Why solution of Ni H2O 6 ++ is green while solution of Ni H2O 4 — is Colourless?

In [Ni(H2O)6]2+ , Ni is in +2 state with the configuration 3d8, i.e., it has two unpaired electrons which do not pair up in the presence of the weak H2O ligand. Thus, there is no unpaired electron present. Hence, it is colourless.

Which of the following complexes is a low spin complex Fe H2O 6 3+ or Fe CN 6’3 explain why?

[Fe(CN)6]3- is a low-spin complex, whereas [Fe(NCS)6]3- is a high-spin complex. Iron is in +3 oxidation state in both the complexes. octahedral structure resulting from elongation along the z axis.

What color would we expect an aqueous solution containing Ti oh2 6 3+ to be?

In [Ti(H2O)6]3+ by absorbing green yellow component of white light d-d transition takes place and the aqueous solution appears purple as the purple is the complimentary colour of greenish- yellow.

What colour is CuCl4 2?

When concentrated hydrochloric acid (HCl) is added, tetrachlorocuprate II complex ions ((CuCl4)2-) are formed. These ions are yellow in colour, which with the blue colour of copper ions results in a vivid green coloured solution (centre left).

What is the oxidation state of Fe in H2O 6 2+?

Now, in case of [Fe (H 2O) 6] 2+ion, the oxidation state of Fe atom is 2+ and co-ordination number of central metal Fe(II)ion ionis 6.

Is Ni H2O 6’2 paramagnetic or diamagnetic?

Therefore, it does not lead to the pairing of unpaired 3d electrons. Therefore, it undergoes sp3 hybridization. Since there are 2 unpaired electrons in this case, it is paramagnetic in nature.

What is the oxidation number of Ni in Ni NH3 6 2+?

In the both cases, the co-ordination number of nickel is six with octahedral geometry. The oxidation number of nickel is +2 with 3d8 system. Crystal field theory requires the splitting of the degenerate d-orbitals with the approaching of the ligands.

Is H2O 6 3+ high-spin or low spin?

! Most aquo complexes are high spin, because H2O is a weak- field ligand. [Co(H2O)6]3+, except [CoF6]3–, which is high spin.

Why is Ni(en)3(2+) blue and Ni(H2O)6(2+) Green?

The key is that the Ni (H2O)6 (2+) complex transmits more visible light in the green part of the spectrum, whereas the Ni (en)3 (2+) complex transmits more visible light in the blue part of the spectrum. Hence Ni (en)3 (2+) is blue and Ni (H2O)6 (2+) is green.

What is the equilibrium constant of coh2o62+?

The following equilibrium is observed: Co(H2O)62+(aq) + 4 Cl-(aq) <=> CoCl42-(aq) + 6 H2O(g) The Co(H2O)62+ complex is pink, and the CoCl42- complex is blue. This reaction is endothermic as written, so adding heat causes the equilibrium constant to shift to the right. This, correspondingly, makes the solution blue.

Why does aqueous solution appear purple in colour?

An aqueous solution of [Ti (H2O)6]3+ absorbs greenish-yellow component of white light, and thats why d-d transition takes place and as a result aqueous solution appears purple, because purple is the complementary colour of greenish yellow. Hope this answer helps..