The Number of ions formed on dissolving one molecule of FeSO4 (NH4)2SO4.6H2O is?
Answer & explanation
Correct answer: option 3
The correct answer is (3).
The compound FeSO4 (NH4)2SO4.6H2O is a double salt. When it dissolves in water, it dissociates into five ions:
Fe2+
2 SO42-
2 NH4+
The dissociation can be represented as:
\(FeSO_4 (NH_4)_2SO_4 6H_2O → Fe^{2+} + 2SO_4^{2-} + 2NH_4^{+} + 6H_2O\)
Therefore, the number of ions formed on dissolving one molecule of FeSO4 (NH4)2SO4.6H2O is 5.