Name an element which shows variable valency ,write the formulae of its two chlorides ?
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Many elements show variable valency such as phosphorus, manganese, iron, chromium etc.
Iron shows two valencies - 2, 3
Ferrous chloride - FeCl2
Ferric chloride - FeCl3
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An element showing variable valency is iron(Fe).
Iron- valency is 2 and 3
Iron (ll) chloride and Iron(lll)chloride
Formulas- Fecl2 And Fecl3
Hope it helps you.
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