Write the formulas for the following coordination compounds: (i) Tetraamminediaquacobalt (III) chloride
Write the formulas for the following coordination compounds: (i) Tetraamminediaquacobalt (III) chloride

Ans: The formula of Tetraamminediaquacobalt (III) chloride is

    \[\left[\mathrm{Co}\left(\mathrm{H}_{2} \mathrm{O}\right)\left(\mathrm{NH}_{3}\right)_{4}\right] \mathrm{Cl}_{3}\]

(ii) Potassium tetracyanonickelate(II)
Ans: The formula of Potassium tetracyanonickelate(II) is \mathrm{K}_{2}\left[\mathrm{Ni}(\mathrm{CN})_{4}\right].
(iii) Tris(ethane-1,2-diamine) chromium(III) chloride
Ans: The formula of Tris(ethane- 1,2 -diamine) chromium(III) chloride is \left[\mathrm{Cr}(\mathrm{en})_{3}\right] \mathrm{Cl}_{3}
(iv) Amminebromidochloridonitrito-N-platinate(11)
Ans: The formula of Amminebromidochloridenitrito-N-platinate(II) is \left[\mathrm{Pt}\left(\mathrm{NH}_{3}\right) \mathrm{BrCl}\left(\mathrm{NO}_{2}\right)\right]^{-}
(v) Dichloridobis(ethane- 1,2 -diamine)platinum(IV) nitrate
Ans: The formula of Dichloridobis(ethane- 1,2 -diamine)platinum(IV) nitrate is \left[\mathrm{PtCl}_{2}(\mathrm{en})_{2}\right]\left(\mathrm{NO}_{2}\right)_{2}
(vi) Iron(III) hexacyanoferrate(II)
Ans: The formula of Iron(III) hexacyanoferrate(II) is \mathrm{Fe}_{4}\left[\mathrm{Fe}(\mathrm{CN})_{6}\right]_{3}