Principles Related to Practical Chemistry questions
214 published questions with worked solutions.
- A substance which gives a yellow precipitate when boiled with an excess of nitric acid and ammonium molybdate, and a precipitate...
- How many of the following are water-insoluble: AgF, AgCl, AgBr, AgI, CaF_2, BaSO_4?
- Which one of the following cations does not form a complex with ammonia?
- Nessler's reagent contains:
- The reagent used for testing ammonia is:
- Phosphate + conc. HNO_3 + (NH_4)_2MoO_4 solution yellow precipitate. The composition of the yellow precipitate is:
- On heating a salt with NaOH, the smell of NH_3 is obtained. The salt contains:
- The hydroxide of which metal is soluble in excess of ammonia?
- Sometimes a yellow turbidity appears while passing H_2S gas even in the absence of group II radicals. This is because:
- Sulphides of which element are not precipitated in acidic or alkaline medium?
- A salt X gives a white precipitate with lead acetate solution, insoluble in hot water and in nitric acid. The salt X most...
- Presence of sulphide ion cannot be confirmed by:
- Test(s) for H_2S gas include:
- The halide which does not give a precipitate (with silver nitrate solution) is:
- K_2[HgI_4] (Nessler's reagent) detects the ion/group:
- When Cl_2 water is added to an aqueous solution of a potassium halide in the presence of chloroform, a violet colour is obtained....
- A positive chromyl chloride test is given by a salt containing:
- The compound insoluble in water is
- Silver, mercury and lead have been placed in the same group of qualitative analysis, because they form:
- A reagent that can separate Fe from Zn is:
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