Which compound has the formula (NH4)2SO4·FeSO4·6H2O?
Correct answer A. Ferrous Ammonium sulphate
Explanation
Ferrous ammonium sulphate, or Mohr's salt, is a double salt of ammonium sulphate and iron(II) sulphate hexahydrate. It titrates excess dichromate in the Walkley-Black organic carbon method.
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