Using IUPAC names, write the formulae for the following:
(i) Hexaamminecobalt(III) sulphate
(ii) Potassium trioxalatochromate(III)
(i) Hexaamminecobalt(III) sulphate
(ii) Potassium trioxalatochromate(III)
Answer: (i) [Co(NH₃)₆]₂(SO₄)₃. (ii) K₃[Cr(C₂O₄)₃].
Solution
(i) [Co(NH)] balanced by SO — take two cations to three anions:
(ii) Cr(+3) with three oxalates (−2 each): complex charge −3 →
(ii) Cr(+3) with three oxalates (−2 each): complex charge −3 →
CBSE Class 12 Board · 2019 · Subjective