Count the correct statements. (i) KAl(SO₄)₂·12H₂O and K₄[Fe(CN)₆] are both formed by combining stable compounds in a stoichiometric ratio. (ii) Mohr's salt, FeSO₄·(NH₄)₂SO₄·6H₂O, gives Fe²⁺ ions

Question

Count the correct statements. (i) KAl(SO₄)₂·12H₂O and K₄[Fe(CN)₆] are both formed by combining stable compounds in a stoichiometric ratio. (ii) Mohr's salt, FeSO₄·(NH₄)₂SO₄·6H₂O, gives Fe²⁺ ions in solution. (iii) [Fe(CN)₆]³⁻ dissociates in water to give Fe³⁺ ions and CN⁻ ions. (iv) Potash alum is a complex salt whose metal ions do not show individual ion tests. (v) [Co(NH₃)₆]Cl₃ dissociates in water into Co³⁺ and NH₃.

Answer:

2

Solution:

(i) and (ii) are correct. (iii) is wrong because the cyanide complex stays intact. (iv) is wrong because potash alum is a double salt and gives K⁺, Al³⁺ and SO₄²⁻. (v) is wrong because the hexaammine cation stays intact. Count = 2.

TestHub · Accepted Answer

(i) and (ii) are correct. (iii) is wrong because the cyanide complex stays intact. (iv) is wrong because potash alum is a double salt and gives K⁺, Al³⁺ and SO₄²⁻. (v) is wrong because the hexaammine cation stays intact. Count = 2.

Chemistry - Coordination Chemistry Question with Solution | TestHub

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