9. COORDINATION COMPOUNDS

    3. Answer in brief.

    x. With the help of crystal field energylevel diagram explain why the complex [Cr(en)3]3⊕ is coloured ?

    Answer:-
    i. The central metal ion titanium has electronic configuration 3d3 and the electrons occupy one of the t2g orbitals. d – d transition in d’ system

    ii. The absorption of the wavelength of light promotes an electron from the t2g level to eg level. Therefore, in the complex [Cr(en)3]3+, d-d transitions are possible. Hence, the complex is coloured.

    Q 3.9
    Q 3.10
    Q 4.1

    9. COORDINATION COMPOUNDS page No. 208

    Appears in Chemistry  Textbook Solution Class 12 Maharashtra Board