Chemistry 9 Chapter 4 MCQs Tests

In this post, we have prepared 3 MCQs tests of Federal Board Chemistry 9 Chapter 4 MCQs Tests. For more Class 9 Chemistry MCQs Tests visit this page.

Chemistry 9 Chapter 4 MCQs Tests

Practice MCQs Test No 1

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803

Class 9 Chemistry

Chapter 4

Practice MCQs Test No 1

1 / 16

Which of the following atoms will not form cation or anion?

C (Atomic No. 18)

D (Atomic No. 19)

B (Atomic No. 17)

A (Atomic No. 16)

2 / 16

Which of the following atoms will form an ion of charge -2?

Atomic Number : 12 Mass Number : 24

Atomic Number : 10 Mass Number : 20

Atomic Number : 8 Mass Number : 16

Atomic Number : 14 Mass Number : 28

3 / 16

Which of the following atoms will form cation?

Atomic number 20

Atomic number 17

Atomic number 18

Atomic number 15

4 / 16

The melting point and boiling pint of water are higher due to:

Its higher density

Its higher molecular mass

Its covalent nature

Hydrogen bonding

5 / 16

Hydrogen bonding is involved in:

Formation of crystals in NaCl

Adhesive action of paints

Conductance of electricity

Van der Waal's force

6 / 16

The covalent bond is formed by:

Mutual sharing of an electron pair by two atoms

Donating an electron pair by one atom

Accepting electron pair by one atom

Complete transfer of electrons

7 / 16

Which of the following is not true about the formation of Na₂S?

Sodium forms cation

Each sulphur atom gains one electron

Sulphur forms anion

Each sodium atom loses one electron

8 / 16

The bond which is formed by complete transfer of electrons from one atom to another is called:

Hydrogen bond

Co-ordinate bond

Covalent bond

Ionic bond

9 / 16

In Hydrogen Iodide (HI), the bond is:

Non polar covalent bond

Polar covalent bond

Ionic bond

Co-ordinate covalent bond

10 / 16

In the formation of AlF₃, aluminum atom loses _____________ electrons.

4

2

3

1

11 / 16

Phosphorus belongs to third period of Group VA. How many electrons it needs to complete its valence shell?

2

5

4

3

12 / 16

Which of the following substance has ionic bond?

SO₂

MgO

H₂O

CO₂

13 / 16

Which of the following atoms obey duplet rule?

O₂

F₂

N₂

H₂

14 / 16

Silicon belongs to Group IVA. It has ______ electrons in the valence shell.

6

4

2

3

15 / 16

Identify the covalent compound:

MgO

NaCl

H₂O

KF

16 / 16

Which of the following molecules has triple covalent bond between its atoms?

O₂

H₂

N₂

F₂

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Practice MCQs Test No 2

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455

Class 9 Chemistry

Chapter 4

Practice MCQs Test No 2

1 / 16

When atoms gain or lose electron they acquire the configuration of:

Next Halogen gas element

Next noble gas element

All of these

Next noble metal element

2 / 16

The metal atoms form:

None of these

Anions

Cations

Both Cations and Anions

3 / 16

Non-metal atoms form:

Cations

None of these

Both Cations and anions

Anions

4 / 16

The noble gases are sometimes called the:

Inert gases

Noble metals

Reactive gases

None of these

5 / 16

In forming compounds, atoms tend to gain electronic configuration of a:

Noble gas

Hydrogen gas

Halogen gas

Noble metal

6 / 16

In a covalent bond, the atom that contributes more electrons for sharing is the:

Central atom

Smallest atom

Positive atom

Biggest atom

7 / 16

Ionic compounds as a whole are:

Negatively charged

Positively charged

None of these

Electrically neutral

8 / 16

Which substance is NOT covalent?

CaO

HCN

H₂O

CO₂

9 / 16

Which substance does not have ionic bond?

MgO

CH₄

NaCl

NaF

10 / 16

Which of the following makes hydrogen very electron-deficient?

Oxygen

Nitrogen

All of these

Fluorine

11 / 16

Which one of the following molecules has a non-polar covalent bond?

N₂

NH₃

N₂O₄

NO₂

12 / 16

Which one of the following compounds is not having an ionic bond?

NaCl

MgO

MgF₂

CO₂

13 / 16

Pairs of valence electrons which are not shared between atoms are called:

Lone pair

Electron pair

Shared pair

None of these

14 / 16

Which of the following elements will gain one electron to complete its octet?

[katex] _{ 17 }^{ 35 }{ X } [/katex]

[katex] _{ 13 }^{ 27 }{ X } [/katex]

[katex] _{ 16 }^{ 32 }{ X } [/katex]

[katex] _{ 18 }^{ 40 }{ X } [/katex]

15 / 16

Due to high ionization energies, which element do NOT lose electron?

Radioactive elements

Metals

Transition elements

Non-metals

16 / 16

Atoms other than the noble gases are reactive because they tend to gain stability by:

All of these

gaining electrons

Sharing electrons

loosing electrons

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Practice MCQs Test No 3

/32

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Class 9 Chemistry

Chapter 4

Challenge MCQs Test

1 / 32

Which of the following atoms will form an ion of charge -2?

Atomic Number : 8 Mass Number : 16

Atomic Number : 14 Mass Number : 28

Atomic Number : 12 Mass Number : 24

Atomic Number : 10 Mass Number : 20

2 / 32

Pairs of valence electrons which are not shared between atoms are called:

Shared pair

Electron pair

None of these

Lone pair

3 / 32

In forming compounds, atoms tend to gain electronic configuration of a:

Hydrogen gas

Noble gas

Noble metal

Halogen gas

4 / 32

Which of the following elements will gain one electron to complete its octet?

[katex] _{ 17 }^{ 35 }{ X } [/katex]

[katex] _{ 16 }^{ 32 }{ X } [/katex]

[katex] _{ 13 }^{ 27 }{ X } [/katex]

[katex] _{ 18 }^{ 40 }{ X } [/katex]

5 / 32

The melting point and boiling pint of water are higher due to:

Its higher molecular mass

Hydrogen bonding

Its covalent nature

Its higher density

6 / 32

Which of the following molecules has triple covalent bond between its atoms?

O₂

H₂

F₂

N₂

7 / 32

Which one of the following molecules has a non-polar covalent bond?

N₂O₄

N₂

NH₃

NO₂

8 / 32

The noble gases are sometimes called the:

None of these

Inert gases

Reactive gases

Noble metals

9 / 32

The covalent bond is formed by:

Mutual sharing of an electron pair by two atoms

Accepting electron pair by one atom

Complete transfer of electrons

Donating an electron pair by one atom

10 / 32

Which of the following atoms obey duplet rule?

O₂

N₂

H₂

F₂

11 / 32

Hydrogen bonding is involved in:

Van der Waal's force

Adhesive action of paints

Conductance of electricity

Formation of crystals in NaCl

12 / 32

Which substance does not have ionic bond?

MgO

NaF

NaCl

CH₄

13 / 32

When atoms gain or lose electron they acquire the configuration of:

Next noble metal element

Next Halogen gas element

All of these

Next noble gas element

14 / 32

Phosphorus belongs to third period of Group VA. How many electrons it needs to complete its valence shell?

3

4

2

5

15 / 32

Which of the following is not true about the formation of Na₂S?

Each sodium atom loses one electron

Sulphur forms anion

Each sulphur atom gains one electron

Sodium forms cation

16 / 32

Which of the following substance has ionic bond?

H₂O

MgO

SO₂

CO₂

17 / 32

The bond which is formed by complete transfer of electrons from one atom to another is called:

Co-ordinate bond

Hydrogen bond

Covalent bond

Ionic bond

18 / 32

Ionic compounds as a whole are:

Positively charged

Negatively charged

Electrically neutral

None of these

19 / 32

Which one of the following compounds is not having an ionic bond?

CO₂

MgO

MgF₂

NaCl

20 / 32

Which of the following makes hydrogen very electron-deficient?

Fluorine

Nitrogen

Oxygen

All of these

21 / 32

Which of the following atoms will form cation?

Atomic number 18

Atomic number 20

Atomic number 15

Atomic number 17

22 / 32

In the formation of AlF₃, aluminum atom loses _____________ electrons.

4

3

1

2

23 / 32

Due to high ionization energies, which element do NOT lose electron?

Radioactive elements

Metals

Non-metals

Transition elements

24 / 32

Which substance is NOT covalent?

CaO

H₂O

HCN

CO₂

25 / 32

Silicon belongs to Group IVA. It has ______ electrons in the valence shell.

3

4

6

2

26 / 32

Non-metal atoms form:

Anions

Cations

None of these

Both Cations and anions

27 / 32

Identify the covalent compound:

NaCl

H₂O

KF

MgO

28 / 32

The metal atoms form:

Anions

Cations

Both Cations and Anions

None of these

29 / 32

In a covalent bond, the atom that contributes more electrons for sharing is the:

Biggest atom

Central atom

Smallest atom

Positive atom

30 / 32

In Hydrogen Iodide (HI), the bond is:

Co-ordinate covalent bond

Polar covalent bond

Ionic bond

Non polar covalent bond

31 / 32

Atoms other than the noble gases are reactive because they tend to gain stability by:

loosing electrons

gaining electrons

All of these

Sharing electrons

32 / 32

Which of the following atoms will not form cation or anion?

A (Atomic No. 16)

D (Atomic No. 19)

C (Atomic No. 18)

B (Atomic No. 17)

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