Qualitative analysis

Adding K₂CO₃ to each of the following leads to forming ppt , except

• BaCl₂

• CaBr₂

• Na₂SO₄

• Pb(NO₃)₂

One of the following ions reduced during qualitative analysis

• Bromide

• Ammonium

• Phosphate

• Nitrite

Which of the following used to differentiate between Sulphur dioxide gas and Carbon dioxide gas

• Acidified K₂Cr₂O₇

• Magnesium carbonate solution

• Acidified KMnO₄

• Witted litmus paper (indicator)

Which ion, in aqueous solution, forms a white precipitate when dilute sulfuric acid is added?

• Ag⁺

• Ba²⁺

• Cu²⁺

• Fe²⁺

Which cation gives a green precipitate with NaOH?

• Fe⁺²

• Al⁺³

• Ca⁺²

• Fe⁺³

A beaker contains a solution (y) , it reacts with HCl forming a gas turbid lime water , and by adding Silver nitrate solution to it , yellow ppt is formed ( then the anions in the solution are .. )

• CO₃^2- , I^-

• Cl^- , CO₃^2-

• Br^- , SO₄^2-

• Ca²⁺ , I^-

The cations Barium and Silver are able to form ppt with the anion ........

• Phosphate

• Carbonate

• Bromide

• Chloride

Salts of Carbonate and Bicarbonate similar in all of the following characters except ........

• They can obtained from same acid

• All are dissolve in water

• Carbondioxide gas evolved by the reaction with HCl

• They form white ppt when react with Magnesium sulphate

Which of the following cations whose carbonate salt can be dissolve in water easily? ……………

• Pb⁺⁺

• NH₄⁺

• Ca²⁺

• Cu²⁺

Hydrochloric acid considered to be more stable than …………. acid.

• Bromic

• Carbonic

• Nitric

• phosphoric