Anion 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,

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.

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

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

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

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

Match List I with List II.

Choose the correct 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 +______.

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

In the ring test of NO$_3^-$ ion what is the oxidation number of iron in the complex (brown ring) [Fe(H$_2$O)$_5$NO]SO$_4$ ?

Among the following, the brown ring is due to the formation of

Sodium salt of an organic acid 'X' produces effervescence with conc. $\ce{H2SO4}$. 'X' reacts with the acidified aqueous $\ce{CaCl2}$ solution to give a white precipitate which decolourises acidic solution of $\ce{KMnO4}$. 'X' is :

The reagent(s) that can selectively precipitate $\ce{S^{2-}}$ from a mixture of $\ce{S^{2-}}$ and $\ce{SO4^{2-}}$ in aqueous solution is(are)

In the following reaction sequence in aqueous solution, the species X, Y and Z, respectively, are
$$\ce{S2O3^{2-}}\xrightarrow{\ce{Ag+}}\underset{\text{clear solution}}{\mathbf X}\xrightarrow{\ce{Ag+}}\underset{\text{white precipitate}}{\mathbf Y}\xrightarrow{\text{with time}}\underset{\text{black precipitate}}{\mathbf Z}$$

An aqueous solution of a salt X turns blood red on treatment with $\ce{SCN-}$ and blue on treatment with $\ce{K4[Fe(CN)6]}$. X also gives a positive chromyl chloride test. The salt X is :

Which of the following hydrogen halides react(s) with $\ce{AgNO3}$(aq) to give a precipitate that dissolves in $\ce{Na2S2O3}$(aq)?

$\ce{AgNO3}$(aq.) was added to an aqueous KCl solution gradually and the conductivity of the solution was measured. The plot of conductance ($\Lambda$) versus the volume of $\ce{AgNO3}$ is