Salt Analysis (Cations & Anions): JEE Questions & Solutions

Consider the following reactions. PbCl₂ + K₂CrO₄ → A + 2KCl (Hot solution) A + NaOH → B + Na₂CrO₄ PbSO₄ + 4CH₃COONH₄ → (NH₄)₂SO₄ + X In the…

In the group analysis of cations, Ba²⁺ & Ca²⁺ are precipitated respectively as

Among the following cations, the number of cations which will give characteristic precipitate in their identification tests with…

Find the compound A from the following reaction sequences: A → aqua regia B → [ (2) CH₃COOH](1) KNO₂ | NH₄OH yellow ppt.

Choose the correct tests with respective observations. (A) CuSO₄ (acidified with acetic acid) + K₄[Fe(CN)₆] → Chocolate brown precipitate.…

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…

A reagent which gives a 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:

The oxidation number of iron in the compound formed during the brown ring test for NO₃⁻ ion is:

Given below are two statements: Statement-I: The gas liberated on warming a salt with dilute H₂SO₄ turns a piece of paper dipped in lead…

Number of metal ions characterized by flame test among the following: Sr²⁺, Ba²⁺, Ca²⁺, Cu²⁺, Zn²⁺, Co²⁺, Fe²⁺

The compound that is white in color is:

Consider the following test for a group-IV cation: M²⁺ + H₂S → A (Black precipitate) + byproduct A + aqua regia → B + NOCl + S + H₂O B +…

Match List I with List II: | List I (Cations) | List II (Group reaction) | |---|---| | (P) Pb²⁺, Cu²⁺ | (i) H₂S gas in presence of dilute…

During the borax bead test with CuSO4, a blue-green colour of the bead was observed in the oxidizing flame due to the formation of:

During the qualitative analysis of SO₃²⁻ using dilute H₂SO₄, SO₂ gas is evolved which turns K₂Cr₂O₇ solution (acidified with dilute H₂SO₄):

In the wet tests for identification of various cations by precipitation, which transition element cation doesn’t belong to group IV in…

Given below are two statements: Statement I: Upon heating a borax bead dipped in cupric sulphate in a luminous flame, the colour of the…

A solution of FeCl₃, when treated with K₄[Fe(CN)₆], gives a prussian blue precipitate due to the formation of:

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

Element not present in Nessler's reagent is:

When a solution of a mixture having two inorganic salts was treated with freshly prepared ferrous sulphate in acidic medium, a dark brown…

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