Chemistry
State the variable valencies of the following elements and give their names. (a) Cu, (b) Ag, (c) Hg, (d) Fe, (e) Pb, (f) Sn, (g) Mn, (h) Pt, (i) Au
Valency
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Answer
| Sl. No. | Element | Valency | Name |
|---|---|---|---|
| (a) | Cu | Cu1+ Cu2+ | Copper [I] i.e., cuprous Copper [II] i.e., cupric |
| (b) | Ag | Ag1+ Ag2+ | Silver [I] Argentous Silver [II] Argentic |
| (c) | Hg | Hg1+ Hg2+ | Mercury [I] Mercurous Mercury [II] Mercuric |
| (d) | Fe | Fe2+ Fe3+ | Iron [II] Ferrous Iron [III] Ferric |
| (e) | Pb | Pb2+ Pb4+ | Lead [II] Plumbous Lead [IV] Plumbic |
| (f) | Sn | Sn2+ Sn4+ | Tin [II] Stannous Tin [IV] Stannic |
| (g) | Mn | Mn2+ Mn4+ | Manganese [II] Manganous Manganese [IV] Manganic |
| (h) | Pt | Pt2+ Pt4+ | Platinum [II] Platinous Platinum [IV] Platinic |
| (i) | Au | Au1+ Au3+ | Gold [I] Aurous Gold [III] Auric |
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