ICSE 10th class Chemistry [ MCQ Question Answer ] | ICSE X | Learn & Give Online MCQS Test ,MCQs: multiple choice questions and answers,Mock Tests and Practice Papers

Question:

A compound having molecular formula CgHi40, and empirical formula C3H,O3, value of n is ______________

1.1

2.2

3.3

4.4

Question:

A solid has properties like high boiling point, high melting point, hard, soluble in polar solvents. Which
type of solid is this ?

1. Ionic solid

2.Covalent solid

3.Coordinate bond

4.All

Question:

An example of salt formed by a base and an acid is...........

1.Sodium chloride

2.Calciurn sulphat

3.Lithium chloride

4.Sodium chloride

Question:

An example of salt formed by a metal and an acid is ________________.

1.Sodium chloride

2.Calcium sulphate

3.Lithium chloride

4.Sodium chlorate

Question:

How many electrons are gained or lost by calcium to attain nearest noble gas configuration?

1.2 electrons gain

2.2 electrons lost

3.3 electrons gain

4.3 electrons lost

Question:

How pH of a neutral solution be increased ?

1.By adding acid

2.By adding alkali

3.Both 1 and 2

4.None of these

Question:

Hydrogen chloride molecule contains:

1.polar covlent bond

2.Double bond

3.Coordinate bond

4.Electrovalent bond

Question:

Hydroxide of this metal is soluble in sodium hydroxide solution :

1.Magnesium

2.Lead

3.Silver

4.Copper

Question:

Identify the following
"A yellow monoxide that dissolves in hot and concentrated caustic alkali".

1.CuO

2.ZnO

3.PbO

4.None of these

Question:

If a solution liberates carbon dioxidide on reaction with sodium carbonate its pH is_______________.

1.Lower than 7

2.More than 7

3. Equal to 7

4.Zero

Question:

If the colour of litmus changes from red to blue, the pH of solution will be ?

1.Lower than 7

2.More than 7

3.Equal to 7

4.Zero

Question:

In which period of the periodic table, an element with atomic number 14 is placed

1.4

2.3

3.2

4.1

Question:

In which period of the periodic table, an element with atomic number 14 is placed?

1.4

2.3

3.2

4.1

Question:

The cathode production of the electrolysis of zinc iodide is:

1.lodine

2.Zinc

3.Zinc oxide

4.Chloride

Question:

The electrode at which reduction occurs is:

1.Anode

2.Cathode

3.Both 1 and 2

4.None of these

Question:

The electrolysis to acidified water is an example  of:

1.reduction

2.Oxidation

3.redox reaction

4.catalytic reaction

Question:

The gas liberated when sodiunm sulphite reacts with dilute sulphuric acid:

1. Carbon dioxide

2.Hydrogen

3.Hydrogen sulphide

4.Sulphur dioxide

Question:

The ratio of certain mass of a gas or vapour to the mass of same volume of hydrogen is it's

1.Vapour density

2.Empirical formula

3.Molecular formula

4.Percentage composition

Question:

The value of second ionisation energy is _________________ than first ionisation energy.

1.more

2.less

3.same

4.none of these

Question:

The vapour density of an element is 14. Calculate is molecular mass.

1.14

2.7

3.28

4.Infinite

Question:

Vapour density of a gas is 22. What is its molecular mass ?

1.23

2.22

3.44

4.11

Question:

What happens to pale blue ppt. obtained when ammonia solution is added to copper sulphate solution
on addition of excess of alkali?

1.Ppt. is soluble

2.Ppt. is insoluble

3.No effect on ppt.

4.Sparingly soluble

Question:

What is the colour of aluminium salts?

1.Red

2.Green

3.White

4.Colourless

Question:

What is the colour of NaOH in Phenolphthalein

1.Red

2.Blue

3.Green

4.Pink

Question:

What is the valency of Z ?

1.1

2.2

3.3

4.4

Question:

What will be the colour of precipitate obtained when NaOH solution is added to iron (ll) sulphate
solution ?

1.Red

2.Green

3.White

4..Colourless

Question:

What will be the empirical formula of a compound if the percentage of elements present is A= 39.56%, B = 7.74%, C = 52.72% ? ( Atomic mass of A= 12, B= 1, C= 16)

1.ABC

2.AgBC

3.A6B7C3

4.A3B3C6

Question:

Which element belongs to the second Period ?

1.X

2.Y

3.Z

4.None of these

Question:

Which is a metal ?

1.X

2.Y

3.Z

4.all of the these

Question:

Which of the conditions are necessary for the formation of ionic bond ?

1.Low ionisation energy

2.High electron affinity

3.High lattice energy

4.All the above

Question:

Which of the following is an example of covalent band ?

1.Calcium oxide

2.Water

3.Ammonia

4.Sodium chloride

Question:

Which of the following is equal to number of electrons in the valence shell?

1.Atomic mass

2. Group number

3.Period number

4.Atomic volume

Question:

Which of the following is least reactive:

1.F

2.Br

3.CI

4.I

Question:

Which of the following is not true for electrolysis of NaCI?

1.Oxidation occurs in Na

2.Reduction occurs at CI

3.Oxidation takes place at cathode

4.It is a redox reaction.

Question:

Which of the following is present in pure water ?

1.Ions

2.Molecules

3.Atoms

4.None of these

Question:

Which of the following is true when lead nitrate is treated with sodium hydroxide solution, and Ppt. obtained is dissolved in excess of alkali

1.White ppt. soluble in excess of alkali

2.White ppt. insoluble in excess of alkali

3.Green ppt. soluble in excess of alkali

4.Green ppt. insoluble in excess of alkali

Question:

Which one of them is a noble gas ?

1.X

2.Y

3.Z

4.None of these

Question:

Which process occur in electropositive ion ?

1.Oxidation

2.Reduction

3.Both 1 and 2

4.None of these

Question:

Which process occur in electropositive ion ?

1.Oxidation

2.Reduction

3.Both I and 2

4.None of these

Question:

_____________the chemical change that occurs at this electrode is called.____________

1.Anode. oxidation

2.Anode, reduction

3.Cathode, oxidation

4.Cathode, reduction

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ICSE X/ICSE 10th class Chemistry [ MCQ Question Answer ] Sample Test,Sample questions

Question: A compound having molecular formula CgHi40, and empirical formula C3H,O3, value of n is ______________

Question: A solid has properties like high boiling point, high melting point, hard, soluble in polar solvents. Which type of solid is this ?

Question: An example of salt formed by a base and an acid is...........

Question: An example of salt formed by a metal and an acid is ________________.

Question: How many electrons are gained or lost by calcium to attain nearest noble gas configuration?

Question: How pH of a neutral solution be increased ?

Question: Hydrogen chloride molecule contains:

Question: Hydroxide of this metal is soluble in sodium hydroxide solution :

Question: Identify the following "A yellow monoxide that dissolves in hot and concentrated caustic alkali".

Question: If a solution liberates carbon dioxidide on reaction with sodium carbonate its pH is_______________.

Question: If the colour of litmus changes from red to blue, the pH of solution will be ?

Question: In which period of the periodic table, an element with atomic number 14 is placed

Question: In which period of the periodic table, an element with atomic number 14 is placed?

Question: The cathode production of the electrolysis of zinc iodide is:

Question: The electrode at which reduction occurs is:

Question: The electrolysis to acidified water is an example of:

Question: The gas liberated when sodiunm sulphite reacts with dilute sulphuric acid:

Question: The ratio of certain mass of a gas or vapour to the mass of same volume of hydrogen is it's

Question: The value of second ionisation energy is _________________ than first ionisation energy.

Question: The vapour density of an element is 14. Calculate is molecular mass.

Question: Vapour density of a gas is 22. What is its molecular mass ?

Question: What happens to pale blue ppt. obtained when ammonia solution is added to copper sulphate solution on addition of excess of alkali?

Question: What is the colour of aluminium salts?

Question: What is the colour of NaOH in Phenolphthalein

Question: What is the valency of Z ?

Question: What will be the colour of precipitate obtained when NaOH solution is added to iron (ll) sulphate solution ?

Question: What will be the empirical formula of a compound if the percentage of elements present is A= 39.56%, B = 7.74%, C = 52.72% ? ( Atomic mass of A= 12, B= 1, C= 16)

Question: Which element belongs to the second Period ?

Question: Which is a metal ?

Question: Which of the conditions are necessary for the formation of ionic bond ?

Question: Which of the following is an example of covalent band ?

Question: Which of the following is equal to number of electrons in the valence shell?

Question: Which of the following is least reactive:

Question: Which of the following is not true for electrolysis of NaCI?

Question: Which of the following is present in pure water ?

Question: Which of the following is true when lead nitrate is treated with sodium hydroxide solution, and Ppt. obtained is dissolved in excess of alkali

Question: Which one of them is a noble gas ?

Question: Which process occur in electropositive ion ?

Question: Which process occur in electropositive ion ?

Question: _____________the chemical change that occurs at this electrode is called.____________

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Question:
A compound having molecular formula CgHi40, and empirical formula C3H,O3, value of n is ______________

Question:
A solid has properties like high boiling point, high melting point, hard, soluble in polar solvents. Which type of solid is this ?

Question:
An example of salt formed by a base and an acid is...........

Question:
An example of salt formed by a metal and an acid is ________________.

Question:
How many electrons are gained or lost by calcium to attain nearest noble gas configuration?

Question:
How pH of a neutral solution be increased ?

Question:
Hydrogen chloride molecule contains:

Question:
Hydroxide of this metal is soluble in sodium hydroxide solution :

Question:
Identify the following "A yellow monoxide that dissolves in hot and concentrated caustic alkali".

Question:
If a solution liberates carbon dioxidide on reaction with sodium carbonate its pH is_______________.

Question:
If the colour of litmus changes from red to blue, the pH of solution will be ?

Question:
In which period of the periodic table, an element with atomic number 14 is placed

Question:
In which period of the periodic table, an element with atomic number 14 is placed?

Question:
The cathode production of the electrolysis of zinc iodide is:

Question:
The electrode at which reduction occurs is:

Question:
The electrolysis to acidified water is an example of:

Question:
The gas liberated when sodiunm sulphite reacts with dilute sulphuric acid:

Question:
The ratio of certain mass of a gas or vapour to the mass of same volume of hydrogen is it's

Question:
The value of second ionisation energy is _________________ than first ionisation energy.

Question:
The vapour density of an element is 14. Calculate is molecular mass.

Question:
Vapour density of a gas is 22. What is its molecular mass ?

Question:
What happens to pale blue ppt. obtained when ammonia solution is added to copper sulphate solution on addition of excess of alkali?

Question:
What is the colour of aluminium salts?

Question:
What is the colour of NaOH in Phenolphthalein

Question:
What is the valency of Z ?

Question:
What will be the colour of precipitate obtained when NaOH solution is added to iron (ll) sulphate solution ?

Question:
What will be the empirical formula of a compound if the percentage of elements present is A= 39.56%, B = 7.74%, C = 52.72% ? ( Atomic mass of A= 12, B= 1, C= 16)

Question:
Which element belongs to the second Period ?

Question:
Which is a metal ?

Question:
Which of the conditions are necessary for the formation of ionic bond ?

Question:
Which of the following is an example of covalent band ?

Question:
Which of the following is equal to number of electrons in the valence shell?

Question:
Which of the following is least reactive:

Question:
Which of the following is not true for electrolysis of NaCI?

Question:
Which of the following is present in pure water ?

Question:
Which of the following is true when lead nitrate is treated with sodium hydroxide solution, and Ppt. obtained is dissolved in excess of alkali

Question:
Which one of them is a noble gas ?

Question:
Which process occur in electropositive ion ?

Question:
Which process occur in electropositive ion ?

Question:
_the chemical change that occurs at this electrode is called.