when
heated gradually?
(ii) Give the electronic configuration of the d-orbitals
of 
ion
and explain why this complex is coloured? (At. no. of Ti = 22)
(iii) Write IUPAC name of
. [3]
Answer:
(i) 
octahedral.
This electron goes in to empty e, level, hence colour changes from viole
to yellow-green 
at
lower temperature: Violet at higher temperature : Yellow-green[1]
(ii)
This electron due to (CFSE) remains in 
and due
to unpaired electron in d-orbital there is d-d* transition and complex
is coloured (violet). [1]
(iii)
Triamminetriaquochromium (III) chloride [1]
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