JEE Main PYQs — Salt Analysis

When a salt is treated with sodium hydroxide solution it gives gas X. On passing gas X through reagent Y a brown coloured precipitate is formed. X and Y respectively, are

Identify A, B and C in the given below reaction sequence {A} {{HNO3}} {Pb(NO3)2} {{H2SO4}} {B} [{(2) Acetic acid, (3) } {K2CrO4}]{{(1) Ammonium acetate}} {C (Yellow ppt)}

Find the compound 'A' from the following reaction sequences. {A} {{aqua-regia}} {B} [{(2) AcOH}]{{(1) } {KNO2}, {NH4OH}} {yellow ppt}

Identify the inorganic sulphides that are yellow in colour: (A) (NH4)2S (B) PbS (C) CuS (D) As2S3 (E) As2S5 Choose the correct answer from the options given below:

The metal ion whose electronic configuration is not affected by the nature of the ligand and which gives a violet colour in non-luminous flame under hot condition in borax bead test is

In chromyl chloride test for confirmation of Cl- ion, a yellow solution is obtained. Acidification of the solution and addition of amyl alcohol and 10% H2O2 turns organic layer blue indicating…

A reagent which gives brilliant red precipitate with Nickel ions in basic medium is

On passing a gas, 'X', through Nessler's reagent, a brown precipitate is obtained. The gas 'X' is

A and B formed in the following reactions are: {CrO2Cl2 + 4NaOH -> A + 2NaCl + 2H2O} {A + 2HCl + 2H2O2 -> B + 3H2O}

The compound that is white in color is

In the precipitation of the iron group (III) in qualitative analysis, ammonium chloride is added before adding ammonium hydroxide to:

When MnO2 and H2SO4 is added to a salt (A), the greenish yellow gas liberated as salt (A) is:

During the detection of acidic radical present in a salt, a student gets a pale yellow precipitate soluble with difficulty in NH4OH solution when sodium carbonate extract was first acidified with…

On reaction of Lead Sulphide with dilute nitric acid which of the following is not formed?

When Cu2+ ion is treated with KI, a white precipitate, X appears in solution. The solution is titrated with sodium thiosulphate, the compound Y is formed. X and Y respectively are

Formation of which complex, among the following, is not a confirmatory test of Pb2+ ions

In the wet tests for identification of various cations by precipitation, which transition element cation doesn't belong to group IV in qualitative inorganic analysis?

In the wet tests for detection of various cations by precipitation, Ba2+ cations are detected by obtaining precipitate of

White precipitate of AgCl dissolves in aqueous ammonia solution due to formation of:

During the qualitative analysis of salt with cation (Y2+), addition of a reagent (X) to alkaline solution of the salt gives a bright red precipitate. The reagent (X) and the cation (Y2+) present…

In the flame test of a mixture of salts, a green flame with blue centre was observed. Which one of the following cations may be present?

A white precipitate was formed when BaCl2 was added to water extract of an inorganic salt. Further, a gas 'X' with characteristic odour was released when the formed white precipitate was dissolved in…

An inorganic compound 'X' on treatment with concentrated H2SO4 produces brown fumes and gives dark brown ring with FeSO4 in presence of concentrated H2SO4. Also compound 'X' gives precipitate 'Y',…

To an aqueous solution containing ions such as Al3+, Zn2+, Ca2+, Fe3+, Ni2+, Ba2+ and Cu2+ was added conc. HCl, followed by H2S. The total number of cation precipitated during this reaction is/are:

On heating, lead (II) nitrate gives a brown gas (A). The gas (A) on cooling changes to a colourless solid/liquid (B). (B) on heating with NO changes to a blue solid (C). The oxidation number of…