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What happens when hydrogen sulphide gas is passed through acidified copper sulphate solution?

Important Questions on Inorganic Chemistry in the Laboratory and in Industry

EASY

Physical Science>Chemistry>Inorganic Chemistry in the Laboratory and in Industry>Hydrogen Sulphide

Acidified potassium dichromate is treated with hydrogen sulphide. In the reaction, the oxidation number of chromium

MEDIUM

Physical Science>Chemistry>Inorganic Chemistry in the Laboratory and in Industry>Hydrogen Sulphide

For the following Assertion and Reason, the correct option is

Assertion (A) : When $Cu$ (II) and sulphide ions are mixed, they react together extremely quickly to give a solid.

Reason (R) : The equilibrium constant of ${Cu}^{2 +} (aq) + S^{2 -} (aq) ⇌ CuS (s)$ is high because the solubility product is low.

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Physical Science>Chemistry>Inorganic Chemistry in the Laboratory and in Industry>Hydrogen Sulphide

Which of the following is not formed when H₂S reacts with acidic K₂Cr₂O₇ solution ?

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Physical Science>Chemistry>Inorganic Chemistry in the Laboratory and in Industry>Hydrogen Sulphide

What colour is produced when

H_{2} S

gas is passed through an alkaline aqueous solution of sodium nitroprusside?

MEDIUM

Physical Science>Chemistry>Inorganic Chemistry in the Laboratory and in Industry>Hydrogen Sulphide

Consider the sulphides

HgS, PbS, CuS, {Sb}_{2} S_{3}, {As}_{2} S_{3}

and

CdS .

Number of these sulphides soluble in

50 % {HNO}_{3}

is ___________ .

MEDIUM

Physical Science>Chemistry>Inorganic Chemistry in the Laboratory and in Industry>Hydrogen Sulphide

Sodium nitroprusside, when added to an alkaline solution of sulphide ions, produce a

HARD

Physical Science>Chemistry>Inorganic Chemistry in the Laboratory and in Industry>Hydrogen Sulphide

An inorganic Compound

' X'

on treatment with concentrated

H_{2} {SO}_{4}

produces brown fumes and gives dark brown ring with

{FeSO}_{4}

in presence of concentrated

H_{2} {SO}_{4}

. Also Compound

' X'

gives precipitate

' Y'

, when its solution in dilute

HCl

is treated with

H_{2} S

gas. The precipitate

' Y'

on treatment with concentrated

{HNO}_{3}

followed by excess of

{NH}_{4} OH

further gives deep blue coloured solution, Compound

' X'

is:

EASY

Physical Science>Chemistry>Inorganic Chemistry in the Laboratory and in Industry>Hydrogen Sulphide

Write down the formula of the precipitate formed when

H_{2} S

gas is passed through an aqueous solution of silver nitrate.

MEDIUM

Physical Science>Chemistry>Inorganic Chemistry in the Laboratory and in Industry>Hydrogen Sulphide

The cation that will not be precipitated by

H_{2} S

in the presence of dil HCl is:

MEDIUM

Physical Science>Chemistry>Inorganic Chemistry in the Laboratory and in Industry>Hydrogen Sulphide

The incorrect statement is:

EASY

Physical Science>Chemistry>Inorganic Chemistry in the Laboratory and in Industry>Hydrogen Sulphide

Write the name of the gas that smells like rotten eggs.

MEDIUM

Physical Science>Chemistry>Inorganic Chemistry in the Laboratory and in Industry>Hydrogen Sulphide

When

H_{2} S

gas is passed into a mixture of

{Mn}^{2 +}, {Ni}^{2 +}, {Cu}^{2 +}

and

{Hg}^{2 +}

ion in an acidified aqueous solution, the precipitates formed are

MEDIUM

Physical Science>Chemistry>Inorganic Chemistry in the Laboratory and in Industry>Hydrogen Sulphide

When

H_{2} S

gas is passed through a hot acidic aqueous solution containing

{Al}^{3 +}, {Cu}^{2 +}, {Pb}^{2 +}

and

{Ni}^{2 +},

a precipitate is formed which consists of

EASY

Physical Science>Chemistry>Inorganic Chemistry in the Laboratory and in Industry>Hydrogen Sulphide

To an aqueous solution containing ions such as

{Al}^{3 +}, {Zn}^{2 +}, {Ca}^{2 +}, {Fe}^{3 +}, {Ni}^{2 +}, {Ba}^{2 +}

and

{Cu}^{2 +}

was added

conc . HCl

, followed by

H_{2} S

. The total number of cations precipitated during this reaction is/are :

MEDIUM

Physical Science>Chemistry>Inorganic Chemistry in the Laboratory and in Industry>Hydrogen Sulphide

Copper sulphate solution reacts with

KCN

to give

EASY

Physical Science>Chemistry>Inorganic Chemistry in the Laboratory and in Industry>Hydrogen Sulphide

A metal nitrate reacts with

K I

to give a black precipitate which on addition of excess of

K I

convert into orange colour solution. The cation of the metal nitrate is

HARD

Physical Science>Chemistry>Inorganic Chemistry in the Laboratory and in Industry>Hydrogen Sulphide

When acetic acid and

K_{4} F e {(C N)}_{6}

is added to a copper salt, a chocolate precipitate is obtained of the compound

MEDIUM

Physical Science>Chemistry>Inorganic Chemistry in the Laboratory and in Industry>Hydrogen Sulphide

H_{2} S

gas when passed through a solution containing

H C l

precipitates the cations of second group of qualitative analysis but not those belonging to the fourth group. It is because

HARD

Physical Science>Chemistry>Inorganic Chemistry in the Laboratory and in Industry>Hydrogen Sulphide

A blue colouration is not obtained when:

EASY

Physical Science>Chemistry>Inorganic Chemistry in the Laboratory and in Industry>Hydrogen Sulphide

C u^{2 +}

and

C d^{2 +}

are distinguised through formation of complex

{[C u {(C N)}_{4}]}^{2 -}

and

{[C d {(C N)}_{4}]}^{2 -},

when

H_{2} S

is passed there is:

What happens when hydrogen sulphide gas is passed through acidified copper sulphate solution?

Important Questions on Inorganic Chemistry in the Laboratory and in Industry

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