Based on the following anions: Br^-, CO3^2-, Cl^-, I^-, NO3^-, NO2^-, PO4^3-, SO

ID: 484968 • Letter: B

Question

Based on the following anions: Br^-, CO3^2-, Cl^-, I^-, NO3^-, NO2^-, PO4^3-, SO4^2-, SO3^2-

1.) Which anions give a precipitate with Ba^2+ ion that is soluble in HNO3?

2.) Which anions evolve a gas when acid is added?

3.) Which anions release an odorous gas as a product?

4.) Which anions are involved in an oxidation-reduction reaction as part of one of the following confirmation reactions?

5.) Which anions do not produce a precipitate in any of the following classification or confirmatory reactions?

Classification Reaction 1: Formation of insoluble salts, such as BaCO3, BaSO4, BaSO3, Ba3(PO4)2

Classification Reaction 2: Formation of volatile products when H3O^+ ion is added to such anions as CO3^2-, NO2^-, SO3^2- ions

Classification Reaction 3: Formation of insolube silver salts, such as AgBr, AgCl, AgI

Sulfate Ion Confirmatory Reaction: Na2SO4 dissolved in water, then add BaCl2 solution, then add HNO3

Sulfite Ion Confirmatory Reaction: Na2SO3 dissolved in water, then add H2SO4

Nitrate Ion Confirmatory Reaction: NaNO3 dissolved in FeSO4, then add H2SO4

Nitrite Ion Confirmatory Reaction: NaNO2 dissolved in water, then add H2SO4

Carbonate Ion Confirmatory Reaction: Na2CO3 placed in water, then add H2SO4.water

Phosphate Ion Confirmatory Reaction: Na3PO4 dissolved nitric acid, then add (NH4)2MoO4

Halide Ion Confirmatory Reaction: NaCl dissolved in water, then add chlorine water, then add CH2Cl2

1. Gives a precipitate with Ba2+ ion that is soluble in HNO3 : CO3^ 2-, PO4^ 3-, SO3^ 2-

2. Evolves a gas when acid is added : CO3^ 2-, NO2^ -, SO3^ 2-

3.Releases an odorous gas as a product : SO3^2-

4. Which anions are involved in an oxidation-reduction reaction as part of one of the following confirmation reactions? Ans :NO2^ -, SO3^ 2-

5.Ans : NO3^ -, NO2^ -

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