Q.3. Using the following Cations and anions
a) write chemical formula of all the possible salts.(Total 25)
CATIONS: Na +, Ca 2+, Al3+ , Fe2+ , NH4+
ANIONS: NO3- , PO43-, SO42- , Cl- , HCO3-
b) React the metals present in the above cations with
i) Hydrochloric acid
ii) Sulphuric acid
iii) Carbonic acid
and write balanced chemical equations for all. ( 12 Equations)
c) Name the gas liberated in the above equations and find out how can we test the presence of this gas.
Answers
Answer:
Explanation:
A)
i) Na⁺ NO₃⁻
Cross change the valency
NaNO₃
Na⁺ PO₄³⁻
Cross change the valency
Na₃PO₄
Na⁺ SO₄²⁻
Cross change the valency
Na₂SO₄
Na⁺ Cl⁻
Cross change the valency
NaCl
Na⁺ HCO₃⁻
Cross change the valency
NaHCO₃
ii) Ca²⁺ NO₃⁻
Cross change the valency
Ca(NO₃)₂
Ca²⁺ PO₄³⁻
Cross change the valency
Ca₃(PO₄)₂
Ca²⁺ SO₄²⁻
Cross change the valency
CaSO₄
Ca²⁺ Cl⁻
Cross change the valency
CaCl₂
Ca²⁺ HCO₃⁻
Cross change the valency
Ca(HCO₃)₂
iii) Al³⁺ NO₃⁻
Cross change the valency
Al(NO₃)₃
Al³⁺ PO₄³⁻
Cross change the valency
AlPO₄
Al³⁺ SO₄²⁻
Cross change the valency
Al₂(SO₄)₃
Al³⁻ Cl⁻
Cross change the valency
AlCl₃
Al³⁺ HCO₃⁻
Cross change the valency
Al(HCO₃)₃
iv) Fe²⁺ NO₃⁻
Cross change the valency
Fe(NO₃)₂
Fe²⁺ PO₄³⁻
Cross change the valency
Fe₃(PO₄)₂
Fe²⁺ SO₄²⁻
Cross change the valency
FeSO₄
Fe²⁺ Cl⁻
Cross change the valency
FeCl₂
Fe²⁺ HCO₃⁻
Cross change the valency
Fe(HCO₃)₂
v) NH₄⁺ NO₃⁻
Cross change the valency
NH₄NO₃
NH₄⁺ PO₄³⁻
Cross change the valency
(NH₄)₃PO₄
NH₄⁺ SO₄²⁻
Cross change the valency
(NH₄)SO₄
NH₄⁺ Cl⁻
Cross change the valency
NH₄Cl
NH₄⁺ HCO₃⁻
Cross change the valency
NH₄HCO₃