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(English Medium) ICSE Class 10 - CISCE Important Questions

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Identify the substance underlined, in the following case

A solid formed by reaction of two gases, one of which is acidic and the other basic in nature

Appears in 1 question paper
Chapter: [3.2] Salts and their Preparations
Concept: Salts

Write a balanced chemical equation for the following:

Preparation of methane from iodomethane.

Appears in 1 question paper
Chapter: [3.2] Salts and their Preparations
Concept: Methods of Preparation of Soluble Salts

Write a balanced chemical equation for the preparation of the following salts

Copper carbonate 

Appears in 1 question paper
Chapter: [3.2] Salts and their Preparations
Concept: Methods of Preparation of Soluble Salts

State what would you observe when Washing Soda Crystals are exposed to the atmosphere

Appears in 1 question paper
Chapter: [3.2] Salts and their Preparations
Concept: Salts

State what would you observe when The salt ferric chloride is exposed to the atmosphere

Appears in 1 question paper
Chapter: [3.2] Salts and their Preparations
Concept: Classification of Salts

Identify the anion present in the following compounds:

A salt D on treatment with dilute sulphuric acid produces a gas which turns lime water milky but has no effect on acidified potassium dichromate solution

Appears in 1 question paper
Chapter: [3.2] Salts and their Preparations
Concept: Preparation of Insoluble Salts

Identify the anion present in the following compounds:
When barium chloride solution is added to salt solution E a white precipitate insoluble in dilute hydrochloric acid is obtained.

Appears in 1 question paper
Chapter: [3.2] Salts and their Preparations
Concept: Preparation of Insoluble Salts

From the list of the following salts choose the salt that most appropriately fits the description is given in the following:

[AgCl, MgCl2, NaHSO4, PbCO3, ZnCO3, KNO3, Ca(NO3)2]

An insoluble chloride.

Appears in 1 question paper
Chapter: [3.2] Salts and their Preparations
Concept: Preparation of Insoluble Salts

From the list of the following salts choose the salt that most appropriately fits the
description is given in the following:

[AgCl, MgCl2, NaHSO4, PbCO3, ZnCO3, KNO3, Ca(NO3)2]

On heating, this salt gives a yellow residue when hot and white when cold

Appears in 1 question paper
Chapter: [3.2] Salts and their Preparations
Concept: Salts

From the list of the following salts choose the salt that most appropriately fits the
description is given in the following:

[AgCl, MgCl2, NaHSO4, PbCO3, ZnCO3, KNO3, Ca(NO3)2]

On heating this salt, a brown colored gas is evolved.

Appears in 1 question paper
Chapter: [3.2] Salts and their Preparations
Concept: Salts

Distinguish between the given pairs of compounds using the test given within brackets:

A lead salt and a zinc salt (using excess ammonium hydroxide)

Appears in 1 question paper
Chapter: [3.2] Salts and their Preparations
Concept: Methods of Preparation of Soluble Salts

Draw the structure of the stable positive ion formed when an acid dissolves in water.

Appears in 1 question paper
Chapter: [3.2] Salts and their Preparations
Concept: Preparation of Insoluble Salts

Give balanced chemical equations to prepare the following salts

Lead sulphate from lead carbonate

Appears in 1 question paper
Chapter: [3.2] Salts and their Preparations
Concept: Classification of Salts

Give balanced chemical equation to prepare the following salt:

Copper chloride using copper carbonate

Appears in 1 question paper
Chapter: [3.2] Salts and their Preparations
Concept: Laboratory Preparation of Some Salts

Name the kind of particles present in carbonic acid.

Appears in 1 question paper
Chapter: [3.2] Salts and their Preparations
Concept: Preparation of Insoluble Salts

The salt solution which does not react with ammonium hydroxide is :

Appears in 1 question paper
Chapter: [3.2] Salts and their Preparations
Concept: Classification of Salts

The property by which certain hydrated salts, when left exposed to the atmosphere, lose their water of crystallization and crumble into powder.

Appears in 1 question paper
Chapter: [3.2] Salts and their Preparations
Concept: Salts

Write a balanced chemical equation for Action of dilute hydrochloric acid on magnesium sulphite.

Appears in 1 question paper
Chapter: [3.2] Salts and their Preparations
Concept: Salts

State one relevant observation for the following:

Anhydrous calcium chloride is exposed to air for some time.

Appears in 1 question paper
Chapter: [3.2] Salts and their Preparations
Concept: Salts

Write a balanced equation for the preparation of the following salts:

Copper sulphate from Copper Carbonate.

Appears in 1 question paper
Chapter: [3.2] Salts and their Preparations
Concept: Salts
< prev  801 to 820 of 3901  next > 
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