Salt Analysis

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

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





List–I

List–II





(P) Passing $\mathrm{H_2S}$ in the presence of $\mathrm{NH_4OH}$

(1) $\ma...

The number of zinc ions present in the molecular formula of $\mathbf{Q}$ is _______.

The number of moles of potassium iodide required to produce two moles of $\mathbf{P}$ is _______.

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

Precipitate X is

Reagent S is

M1, Q and R, respectively, are

The coloured solution S contains

The precipitate P contains

Passing H2S gas into a mixture of Mn2+, Ni2+, Cu2+ and Hg2+ ions in an acidified aqueous solution precipitates

The final solution contains :

The compound N is

The metal rod M is

The compound Z is

The compound Y is

The compound X is

A solution of a metal ion when treated with KI gives a red precipitate which dissolves in excess KI to give a colourless solution. Moreover, the solution of metal ion
treatment with a solution of cobalt (II) thiocyanate gives rise to a de...

$\mathrm{CuSO}_4$ decolourises on addition of KCN , the product is

A solution when diluted with $\mathrm{H}_2 \mathrm{O}$ and boiled, it gives a white precipitate. On addition of excess $\mathrm{NH}_4 \mathrm{Cl} / \mathrm{NH}_4 \mathrm{OH}$, the volume of precipitate decreases leaving behind a white gelat...

A is binary compound of a univalent metal. 1.422 g of A
reacts completely with 0.321 g of sulphur in an evacuated
and sealed tube to give 1.743 g of a white crystalline solid
B, that forms a hydrated double salt, C with Al2
(SO4)3
.
Identif...

When 16.8 g of white solid X were heated, 4.4 g of acid
gas A, that turned lime water milky was driven off together
with 1.8 g of a gas B which condensed to a colourless
liquid. The solid that remained, Y, dissolved in water to
give an alka...

Compound A is a light green crystalline solid. It gives
the following tests :
(i) It dissolves in dilute sulphuric acid. No gas is
produced.
(ii) A drop of KMnO4
is added to the above solution. The
pink colour disappears.
(iii) Compound A ...

Explain the following in not more than two sentenses.
A solution of FeCl3
in water gives a brown precipitate on
standing.

The precipitation of second group sulphides in qualitative
analysis is carried out with hydrogen sulphide in the presence
of hydrochloric acid but not in nitric acid. Explain.

A white amorphous powder (A) on heating yields a
colourless, non-combustible gas (B) and a solid (C).
The latter compound assumes a yellow colour on heating
and changes to white on cooling. (C) dissolves in dilute
acid and the resulting sol...