AP EAMCET20224 Jul 2022Morning ShiftChemistryCoordination CompoundsActual
Which of the following is correct related to the colours of TiCl 3 X Ti H 2 O 6 Cl 3 Y
Options
- AX = Colourless Y = Colouored
- BX = Colouored Y = Colouored
- CX = Colourless Y = Colourless
- DX = Colouored Y = Colourless
Correct answer
A. X = Colourless Y = Colouored
Step-by-step solution
Atomic number of Titanium is 22. Electronic configuration of Ti is Ar 3 d 2 4 s 2 The colour of transition metal compounds is due to the presence of unpaired electrons in their metal ions which are responsible for d-d transitions. The colour in the coordination compounds can be readily explained in terms of the crystal field theory. Consider, for example, the complex [Ti(H 2 O) 6 ] 3+ , which is violet in colour. This is an octahedral complex where the single electron (Ti 3+ is a 3d 1 system) in the metal d orbital