9. COORDINATION COMPOUNDS

    3. Answer in brief.

    i. What are bidentate ligands ? Give one example.

    Answer:-

    A polydentate ligand has two or more donor atoms linked to the central metal ion. For example, ethylenediamine and oxalate ion. Each of these ligands possesses two donor atoms. These are bidentate ligands.
    i. Ethylenediamine binds to metal using electron pair on each of its two nitrogens.

    Ethylenediamine

    Similarly oxalate ion (C2O4)2 utilizes electron pair on each of its negatively charged oxygen atoms upon linking with the metal.

    oxalate ion

    ii. Ethylenediaminetetraacetate ion (EDTA)4 binds to metal ion by electron pairs of four oxygen and two nitrogen atoms. It is a hexadentate ligand.

    hexadentate ligand.
    Q 2.8
    Q 3.1
    Q 3.2

    9. COORDINATION COMPOUNDS page No. 208

    Appears in Chemistry  Textbook Solution Class 12 Maharashtra Board