Match the complexions given in Column I with the colours given in Column IIand assign the correct code:
Code:
The generation of colours in coordination complexes indicates that some of the portions of the visible spectrum are being absorbed from the white light when it passes through a sample. Hence, the light emerges is no longer white. The observed colour of the complex is complementary to which is absorbed.(and this colour is the colour that is generated from the wavelength that is left over after absorption.)
• The correct answer will be the option (ii) A (4) B (3) C (2) D (1).
Hence, matching the two columns the right complex ion-colour arrangement will be:
A. [Co(NH3)6]3+ -4.Yellowish orange
B.[Ti(H2O)6]3+-3. Pale blue
C.[Ni(H2O)6]2+ -2. Green
D.[Ni (H2O)4(en)]2+(aq.) -1.Violet.