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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287

Class 9 Chemistry

Chapter 4

Practice MCQs Test No 1

1 / 16

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

Co-ordinate bond

Covalent bond

Ionic bond

Hydrogen bond

2 / 16

Which of the following atoms will form cation?

Atomic number 20

Atomic number 17

Atomic number 15

Atomic number 18

3 / 16

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

4

1

3

2

4 / 16

Which of the following substance has ionic bond?

SO₂

CO₂

MgO

H₂O

5 / 16

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

6

3

2

4

6 / 16

Which of the following atoms obey duplet rule?

H₂

N₂

F₂

O₂

7 / 16

In Hydrogen Iodide (HI), the bond is:

Polar covalent bond

Non polar covalent bond

Ionic bond

Co-ordinate covalent bond

8 / 16

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

A (Atomic No. 16)

B (Atomic No. 17)

D (Atomic No. 19)

C (Atomic No. 18)

9 / 16

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

Its higher density

Its covalent nature

Hydrogen bonding

Its higher molecular mass

10 / 16

Identify the covalent compound:

KF

H₂O

MgO

NaCl

11 / 16

The covalent bond is formed by:

Complete transfer of electrons

Donating an electron pair by one atom

Accepting electron pair by one atom

Mutual sharing of an electron pair by two atoms

12 / 16

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

N₂

F₂

H₂

O₂

13 / 16

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

Each sulphur atom gains one electron

Sulphur forms anion

Sodium forms cation

Each sodium atom loses one electron

14 / 16

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

Atomic Number : 12 Mass Number : 24

Atomic Number : 8 Mass Number : 16

Atomic Number : 10 Mass Number : 20

Atomic Number : 14 Mass Number : 28

15 / 16

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

3

2

5

4

16 / 16

Hydrogen bonding is involved in:

Formation of crystals in NaCl

Conductance of electricity

Adhesive action of paints

Van der Waal's force

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Practice MCQs Test No 2

/16

127

Class 9 Chemistry

Chapter 4

Practice MCQs Test No 2

1 / 16

The metal atoms form:

Anions

None of these

Cations

Both Cations and Anions

2 / 16

Which substance does not have ionic bond?

NaF

CH₄

MgO

NaCl

3 / 16

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

Radioactive elements

Transition elements

Non-metals

Metals

4 / 16

Which substance is NOT covalent?

HCN

CaO

H₂O

CO₂

5 / 16

Which of the following makes hydrogen very electron-deficient?

Oxygen

Fluorine

Nitrogen

All of these

6 / 16

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

Smallest atom

Central atom

Biggest atom

Positive atom

7 / 16

The noble gases are sometimes called the:

None of these

Inert gases

Noble metals

Reactive gases

8 / 16

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

Halogen gas

Hydrogen gas

Noble gas

Noble metal

9 / 16

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

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

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

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

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

10 / 16

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

NaCl

MgO

CO₂

MgF₂

11 / 16

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

N₂

N₂O₄

NH₃

NO₂

12 / 16

Non-metal atoms form:

Both Cations and anions

Anions

None of these

Cations

13 / 16

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

All of these

Next noble metal element

Next noble gas element

Next Halogen gas element

14 / 16

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

Sharing electrons

loosing electrons

gaining electrons

All of these

15 / 16

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

Lone pair

Shared pair

None of these

Electron pair

16 / 16

Ionic compounds as a whole are:

Negatively charged

None of these

Electrically neutral

Positively charged

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Practice MCQs Test No 3

/32

186

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Class 9 Chemistry

Chapter 4

Challenge MCQs Test

1 / 32

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

NH₃

N₂

NO₂

N₂O₄

2 / 32

Ionic compounds as a whole are:

Positively charged

None of these

Negatively charged

Electrically neutral

3 / 32

Hydrogen bonding is involved in:

Conductance of electricity

Van der Waal's force

Adhesive action of paints

Formation of crystals in NaCl

4 / 32

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

Next noble metal element

All of these

Next Halogen gas element

Next noble gas element

5 / 32

Identify the covalent compound:

KF

NaCl

H₂O

MgO

6 / 32

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

loosing electrons

All of these

Sharing electrons

gaining electrons

7 / 32

Which of the following atoms will form cation?

Atomic number 20

Atomic number 18

Atomic number 17

Atomic number 15

8 / 32

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

MgO

CO₂

NaCl

MgF₂

9 / 32

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

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

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

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

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

10 / 32

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

N₂

F₂

H₂

O₂

11 / 32

Non-metal atoms form:

Anions

Cations

Both Cations and anions

None of these

12 / 32

Which of the following makes hydrogen very electron-deficient?

Oxygen

Fluorine

Nitrogen

All of these

13 / 32

The metal atoms form:

Cations

None of these

Anions

Both Cations and Anions

14 / 32

Which of the following substance has ionic bond?

CO₂

H₂O

MgO

SO₂

15 / 32

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

Radioactive elements

Transition elements

Non-metals

Metals

16 / 32

Which substance is NOT covalent?

CaO

CO₂

H₂O

HCN

17 / 32

Which substance does not have ionic bond?

NaF

CH₄

MgO

NaCl

18 / 32

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

A (Atomic No. 16)

C (Atomic No. 18)

D (Atomic No. 19)

B (Atomic No. 17)

19 / 32

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

Shared pair

Electron pair

None of these

Lone pair

20 / 32

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

Smallest atom

Central atom

Positive atom

Biggest atom

21 / 32

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

2

4

1

3

22 / 32

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

Hydrogen gas

Halogen gas

Noble gas

Noble metal

23 / 32

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

4

6

2

3

24 / 32

The covalent bond is formed by:

Accepting electron pair by one atom

Complete transfer of electrons

Mutual sharing of an electron pair by two atoms

Donating an electron pair by one atom

25 / 32

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

Its covalent nature

Its higher molecular mass

Hydrogen bonding

Its higher density

26 / 32

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

Hydrogen bond

Covalent bond

Ionic bond

Co-ordinate bond

27 / 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 : 10 Mass Number : 20

Atomic Number : 12 Mass Number : 24

28 / 32

In Hydrogen Iodide (HI), the bond is:

Polar covalent bond

Non polar covalent bond

Ionic bond

Co-ordinate covalent bond

29 / 32

The noble gases are sometimes called the:

Inert gases

None of these

Noble metals

Reactive gases

30 / 32

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

4

3

5

2

31 / 32

Which of the following atoms obey duplet rule?

F₂

O₂

N₂

H₂

32 / 32

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

Each sulphur atom gains one electron

Sulphur forms anion

Sodium forms cation

Each sodium atom loses one electron

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