Salt Analysis QuizSalt analysis, also known as qualitative inorganic analysis, is the process of identifying the acidic (anion) and basic (cation) radicals present in an inorganic salt. It involves preliminary tests (physical properties, solubility), dry tests (flame test, charcoal cavity test), and wet tests (group analysis and confirmatory tests). This systematic procedure helps determine the composition of an unknown salt using characteristic reactions 1 / 25The reaction of sulfuric acid with a chloride salt produces which gas? H₂S CO₂ HCl NO₂ 2 / 25In the group analysis of basic radicals, which cations are precipitated as chlorides in Group I? Na⁺, K⁺ Pb²⁺, Hg₂²⁺, Ag⁺ Fe²⁺, Fe³⁺ Cu²⁺, Zn²⁺ 3 / 25The borax bead test is mainly used to detect which type of elements? Alkali metals Alkaline earth metals Transition metals Halogens 4 / 25Which of the following acid radicals gives effervescence with dilute acids? Sulfate (SO₄²⁻) Carbonate (CO₃²⁻) Chloride (Cl⁻) Nitrate (NO₃⁻) 5 / 25The presence of Fe³⁺ ions can be confirmed by adding potassium ferrocyanide, which gives a White precipitate Deep blue precipitate Brown ring formation Black precipitate 6 / 25In a flame test, lithium gives which characteristic color Yellow red green blue 7 / 25A green residue observed after performing the charcoal cavity test indicates the presence of: Fe Ba Cu Mn 8 / 25The flame test is commonly used to detect which type of elements? Non-metals Transition metals Alkali and alkaline earth metals Halogens 9 / 25Which of the following acid radicals can be detected using a ferric chloride (FeCl₃) test? Acetate (CH₃COO⁻) Carbonate (CO₃²⁻) Sulfate (SO₄²⁻) Nitrate (NO₃⁻) 10 / 25Which reagent is used to distinguish between sulfate (SO₄²⁻) and sulfite (SO₃²⁻) ions? Ammonium hydroxide Barium chloride Potassium permanganate Silver nitrate 11 / 25The cobalt nitrate test is used to identify which type of compounds Carbonates and nitrates Halides Phosphates and aluminum compounds Sulfates 12 / 25The salt containing which acid radical produces a yellow residue on heating with concentrated nitric acid? Phosphate (PO₄³⁻) Sulfate (SO₄²⁻) Sulfite (SO₃²⁻) none 13 / 25What color does copper produce in the flame test Blue-green Blue-yellow Blue-brown Blue-reddish 14 / 25A brown ring test is performed for the detection of which radical? Cu²⁺ Fe³⁺ NO₃⁻ Pb²⁺ 15 / 25Which reagent is used to detect ammonium (NH₄⁺) ions? Sodium hydroxide (NaOH) Barium chloride (BaCl₂) Silver nitrate (AgNO₃) Potassium dichromate (K₂Cr₂O₇) 16 / 25What is the characteristic flame color for potassium salts in a flame test? yellow green red violet 17 / 25The presence of chloride (Cl⁻) ions is confirmed using: Silver nitrate (AgNO₃) solution Barium chloride (BaCl₂) solution Potassium dichromate (K₂Cr₂O₇) Ammonium oxalate 18 / 25Which acid radical is confirmed by the formation of a yellow precipitate with silver nitrate F Cl Br I 19 / 25What is the confirmatory test for calcium (Ca²⁺) ions? Ammonium molybdate test White precipitate with ammonium oxalate Formation of brown ring Blue solution with sodium hydroxide 20 / 25Which of the following tests is used to detect the presence of sodium ions in a dry test? Cobalt nitrate test Lassaigne’s test Flame test Borax bead test 21 / 25Which reagent is commonly used in the dry test for sulfates Barium chloride Silver nitrate Potassium permanganate Lead acetate 22 / 25Which of the following is NOT a dry test? Flame test Borax bead test Charcoal cavity test Precipitation test 23 / 25What is the confirmatory test for phosphate (PO₄³⁻) ions Brown ring test White precipitate with ammonium molybdate Effervescence with acid Yellow precipitate with AgNO₃ 24 / 25When lead acetate is added to a solution containing a sulfide (S²⁻) ion, what is observed White precipitate Black precipitate Yellow precipitat Blue precipitate 25 / 25In the charcoal cavity test, which reagent is commonly used as a reducing agent? Ammonium hydroxide Potassium dichromate Sodium carbonate Sodium carbonate and charcoal Your score isThe average score is 63% 0% Restart quiz