Qualitative Analysis

Given below are two statements :

Statement (I) : Oxidising power of halogens decreases in the order $\ce{F2} > \ce{Cl2} > \ce{Br2} > \ce{I2}$, which is the basis of "Layer test".

Statement (II) : "Layer test" to identify $\ce{Br2}$ and $\ce{I2}$ in aqueous solution involves the oxidation of bromide or iodide into $\ce{Br2}$ or $\ce{I2}$ respectively with $\ce{Cl2}$, which is a type of displacement redox reaction.

In the light of the above statements, choose the correct answer from the options given below :

A salt with few drops of conc. HCl gives apple green colour in flame test. The group precipitate of the salt is dissolved in acetic acid and treated with $\ce{K2CrO4}$ to give yellow precipitate. When the sodium carbonate extract of the salt solution is heated with conc. $\ce{HNO3}$ and ammonium molybdate, it resulted a canary yellow precipitate. The cation and anion present in the salt are respectively,

Among $\ce{Fe^{2+}}$, $\ce{Fe^{3+}}$, $\ce{Cr^{2+}}$ and $\ce{Zn^{2+}}$, the ion that shows positive borax bead test and with highest ionisation enthalpy is :

Among $\ce{Fe^{3+}}$, $\ce{Pb^{2+}}$, $\ce{Cu^{2+}}$ and $\ce{Mn^{2+}}$, identify the one that gets precipitated out while passing $\ce{H2S}$ in presence of $\ce{NH4OH}$ as group reagent. The highest possible oxidation state of the corresponding metal is

Treatment of a gas 'X' with a freshly prepared ferrous sulphate solution gives a compound 'Y' as a brown ring. The compounds X and Y are.

The correct match of the group reagents in List-I for precipitating the metal ion given in List-II from solutions, is

During sodium nitroprusside test of sulphide ion in an aqueous solution, one of the ligands coordinated to the metal ion is converted to

The number of zinc ions present in the molecular formula of Q is _____.

In the scheme given below, X and Y, respectively, are

During the qualitative analysis of salt with cation $y^{2+}$, addition of a reagent (X) to alkaline solution of the salt gives a bright red precipitate. The reagent (X) and the cation ($y^{2+}$) present respectively are :

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?

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

Which statement is not true with respect to nitrate ion test ?

s-block element which cannot be qualitatively confirmed by the flame test is

Match List I with List II.

Choose the correct answer from the options given below:

Match List - I with List - II.

Choose the most appropriate answer from the options given below :

A white precipitate was formed when $\mathrm{BaCl_2}$ 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 dilute HCl. The anion present in the inorganic salt is

Correct formula of the compound which gives a white precipitate with $\mathrm{BaCl_2}$ solution, but not with $\mathrm{AgNO_3}$ solution, is

The reagent neutral ferric chloride is used to detect the presence of ______

In the following brown complex, the oxidation state of iron is +______.

$$\mathrm{[Fe(H_2O)_6]^{2+}+NO\rightarrow\underset{Brown\ complex}{[Fe(H_2O)_5(NO)]^{2+}}+H_2O}$$