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

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Hydrogen sulphide is used to separate from normal water.

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Important Questions on Inorganic Chemistry in the Laboratory and in Industry

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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?

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 :

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

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

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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

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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

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

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

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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 down the formula of the precipitate formed when

H_{2} S

gas is passed through an aqueous solution of silver nitrate.

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

Explain the reaction of concentrated sulphuric acid with copper.

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

H_{2} S

is a poisonous gas. Why?

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

Explain the reaction of

H_{2} {SO}_{4}

with

HI

.

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

Is copper oxidised or reduced in the following reaction?

$Cu + 2 H_{2} {SO}_{4} \to CuSO 4 + {SO}_{2} + 2 H_{2} O$

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

Which of the following compounds, when heated with conc.

H_{2} {SO}_{4},

liberates a gas which turns starch paper blue?

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

In the reaction,

2 HI + H_{2} {SO}_{4} (con .) \overset{}{\to} A + 2 H_{2} O + {SO}_{2}

, identify the product

A

.

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

Which of the following on reacting with

H_{2} S

does not produce metallic sulphide?

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

In the reaction of hot concentrated sulphuric acid with copper, sulphuric acid is reduced to

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

Represent the union of two sets by Venn diagram for each of the following.

$X = {x | x$ is a prime number between $80$ and $100}$

$Y = {y | y$ is an odd number between $90$ and $100}$

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

Sodium thiosulphate is prepared by

HARD

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

On oxidation with iodine, sulphite ion is transformed to