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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679

Class 9 Chemistry

Chapter 4

Practice MCQs Test No 1

1 / 16

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

2 / 16

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

4

2

6

3

3 / 16

Hydrogen bonding is involved in:

Van der Waal's force

Adhesive action of paints

Formation of crystals in NaCl

Conductance of electricity

4 / 16

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

A (Atomic No. 16)

D (Atomic No. 19)

B (Atomic No. 17)

C (Atomic No. 18)

5 / 16

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

5

4

3

2

6 / 16

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

Atomic Number : 12 Mass Number : 24

Atomic Number : 14 Mass Number : 28

Atomic Number : 8 Mass Number : 16

Atomic Number : 10 Mass Number : 20

7 / 16

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

Each sodium atom loses one electron

Each sulphur atom gains one electron

Sodium forms cation

Sulphur forms anion

8 / 16

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

H₂

F₂

N₂

O₂

9 / 16

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

2

1

3

4

10 / 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

11 / 16

Identify the covalent compound:

MgO

H₂O

KF

NaCl

12 / 16

In Hydrogen Iodide (HI), the bond is:

Co-ordinate covalent bond

Ionic bond

Polar covalent bond

Non polar covalent bond

13 / 16

Which of the following substance has ionic bond?

MgO

H₂O

CO₂

SO₂

14 / 16

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

Covalent bond

Co-ordinate bond

Hydrogen bond

Ionic bond

15 / 16

Which of the following atoms obey duplet rule?

N₂

O₂

H₂

F₂

16 / 16

Which of the following atoms will form cation?

Atomic number 20

Atomic number 17

Atomic number 15

Atomic number 18

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Practice MCQs Test No 2

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373

Class 9 Chemistry

Chapter 4

Practice MCQs Test No 2

1 / 16

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

Non-metals

Radioactive elements

Transition elements

Metals

2 / 16

The noble gases are sometimes called the:

Inert gases

Reactive gases

None of these

Noble metals

3 / 16

Which of the following makes hydrogen very electron-deficient?

Nitrogen

All of these

Oxygen

Fluorine

4 / 16

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

MgO

MgF₂

NaCl

CO₂

5 / 16

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

Smallest atom

Central atom

Biggest atom

Positive atom

6 / 16

Which substance is NOT covalent?

CaO

HCN

H₂O

CO₂

7 / 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]

8 / 16

Ionic compounds as a whole are:

Electrically neutral

Negatively charged

None of these

Positively charged

9 / 16

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

Lone pair

None of these

Shared pair

Electron pair

10 / 16

The metal atoms form:

Cations

None of these

Both Cations and Anions

Anions

11 / 16

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

gaining electrons

Sharing electrons

All of these

loosing electrons

12 / 16

Non-metal atoms form:

Cations

Anions

None of these

Both Cations and anions

13 / 16

Which substance does not have ionic bond?

CH₄

NaF

MgO

NaCl

14 / 16

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

Noble metal

Noble gas

Halogen gas

Hydrogen gas

15 / 16

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

Next noble metal element

Next noble gas element

Next Halogen gas element

All of these

16 / 16

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

NH₃

N₂

NO₂

N₂O₄

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Practice MCQs Test No 3

/32

546

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Class 9 Chemistry

Chapter 4

Challenge MCQs Test

1 / 32

The metal atoms form:

Both Cations and Anions

Cations

None of these

Anions

2 / 32

The covalent bond is formed by:

Complete transfer of electrons

Accepting electron pair by one atom

Mutual sharing of an electron pair by two atoms

Donating an electron pair by one atom

3 / 32

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

A (Atomic No. 16)

C (Atomic No. 18)

B (Atomic No. 17)

D (Atomic No. 19)

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

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

5 / 32

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

loosing electrons

gaining electrons

Sharing electrons

All of these

6 / 32

Non-metal atoms form:

Anions

Cations

None of these

Both Cations and anions

7 / 32

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

3

6

4

2

8 / 32

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

Transition elements

Non-metals

Metals

Radioactive elements

9 / 32

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

F₂

O₂

N₂

H₂

10 / 32

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

2

5

4

3

11 / 32

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

MgO

CO₂

MgF₂

NaCl

12 / 32

The noble gases are sometimes called the:

Noble metals

Inert gases

Reactive gases

None of these

13 / 32

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

N₂O₄

N₂

NO₂

NH₃

14 / 32

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

2

4

3

1

15 / 32

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

Positive atom

Smallest atom

Biggest atom

Central atom

16 / 32

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

Hydrogen gas

Halogen gas

Noble gas

Noble metal

17 / 32

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

Ionic bond

Co-ordinate bond

Hydrogen bond

Covalent bond

18 / 32

Which of the following makes hydrogen very electron-deficient?

All of these

Oxygen

Fluorine

Nitrogen

19 / 32

Identify the covalent compound:

MgO

H₂O

NaCl

KF

20 / 32

Hydrogen bonding is involved in:

Van der Waal's force

Conductance of electricity

Adhesive action of paints

Formation of crystals in NaCl

21 / 32

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

Next Halogen gas element

All of these

Next noble metal element

Next noble gas element

22 / 32

Which of the following atoms will form cation?

Atomic number 20

Atomic number 15

Atomic number 18

Atomic number 17

23 / 32

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

Atomic Number : 10 Mass Number : 20

Atomic Number : 12 Mass Number : 24

Atomic Number : 14 Mass Number : 28

Atomic Number : 8 Mass Number : 16

24 / 32

Ionic compounds as a whole are:

Electrically neutral

Positively charged

Negatively charged

None of these

25 / 32

Which of the following atoms obey duplet rule?

H₂

N₂

F₂

O₂

26 / 32

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

Its higher density

Its higher molecular mass

Its covalent nature

Hydrogen bonding

27 / 32

In Hydrogen Iodide (HI), the bond is:

Non polar covalent bond

Ionic bond

Co-ordinate covalent bond

Polar covalent bond

28 / 32

Which of the following substance has ionic bond?

H₂O

MgO

SO₂

CO₂

29 / 32

Which substance does not have ionic bond?

MgO

CH₄

NaCl

NaF

30 / 32

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

Each sulphur atom gains one electron

Each sodium atom loses one electron

Sodium forms cation

Sulphur forms anion

31 / 32

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

Electron pair

Shared pair

Lone pair

None of these

32 / 32

Which substance is NOT covalent?

HCN

H₂O

CO₂

CaO

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