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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283

Class 9 Chemistry

Chapter 4

Practice MCQs Test No 1

1 / 16

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

Its covalent nature

Hydrogen bonding

Its higher molecular mass

Its higher density

2 / 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 : 10 Mass Number : 20

Atomic Number : 8 Mass Number : 16

3 / 16

Which of the following substance has ionic bond?

H₂O

SO₂

MgO

CO₂

4 / 16

Hydrogen bonding is involved in:

Van der Waal's force

Adhesive action of paints

Conductance of electricity

Formation of crystals in NaCl

5 / 16

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

B (Atomic No. 17)

D (Atomic No. 19)

C (Atomic No. 18)

A (Atomic No. 16)

6 / 16

Identify the covalent compound:

KF

NaCl

MgO

H₂O

7 / 16

In Hydrogen Iodide (HI), the bond is:

Polar covalent bond

Non polar covalent bond

Ionic bond

Co-ordinate covalent bond

8 / 16

The covalent bond is formed by:

Donating an electron pair by one atom

Accepting electron pair by one atom

Complete transfer of electrons

Mutual sharing of an electron pair by two atoms

9 / 16

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

4

3

2

1

10 / 16

Which of the following atoms obey duplet rule?

H₂

N₂

O₂

F₂

11 / 16

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

2

4

6

3

12 / 16

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

F₂

N₂

O₂

H₂

13 / 16

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

Co-ordinate bond

Ionic bond

Hydrogen bond

Covalent bond

14 / 16

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

5

2

4

3

15 / 16

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

Sulphur forms anion

Sodium forms cation

Each sulphur atom gains one electron

Each sodium atom loses one electron

16 / 16

Which of the following atoms will form cation?

Atomic number 20

Atomic number 15

Atomic number 17

Atomic number 18

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Practice MCQs Test No 2

/16

126

Class 9 Chemistry

Chapter 4

Practice MCQs Test No 2

1 / 16

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

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

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

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

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

2 / 16

The metal atoms form:

Anions

Cations

Both Cations and Anions

None of these

3 / 16

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

All of these

loosing electrons

gaining electrons

Sharing electrons

4 / 16

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

Noble metal

Hydrogen gas

Noble gas

Halogen gas

5 / 16

Which of the following makes hydrogen very electron-deficient?

Oxygen

Nitrogen

Fluorine

All of these

6 / 16

Which substance does not have ionic bond?

NaCl

CH₄

MgO

NaF

7 / 16

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

Radioactive elements

Non-metals

Metals

Transition elements

8 / 16

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

CO₂

NaCl

MgF₂

MgO

9 / 16

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

None of these

Shared pair

Lone pair

Electron pair

10 / 16

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

Central atom

Smallest atom

Biggest atom

Positive atom

11 / 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

12 / 16

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

N₂O₄

NO₂

NH₃

N₂

13 / 16

Which substance is NOT covalent?

CO₂

HCN

H₂O

CaO

14 / 16

Ionic compounds as a whole are:

None of these

Positively charged

Negatively charged

Electrically neutral

15 / 16

Non-metal atoms form:

Anions

None of these

Cations

Both Cations and anions

16 / 16

The noble gases are sometimes called the:

None of these

Inert gases

Noble metals

Reactive gases

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Practice MCQs Test No 3

/32

177

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Class 9 Chemistry

Chapter 4

Challenge MCQs Test

1 / 32

The noble gases are sometimes called the:

None of these

Inert gases

Noble metals

Reactive gases

2 / 32

Non-metal atoms form:

Anions

Cations

Both Cations and anions

None of these

3 / 32

Which of the following makes hydrogen very electron-deficient?

Fluorine

Nitrogen

Oxygen

All of these

4 / 32

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

Hydrogen bond

Ionic bond

Covalent bond

Co-ordinate bond

5 / 32

Which substance does not have ionic bond?

CH₄

NaF

NaCl

MgO

6 / 32

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

Metals

Radioactive elements

Transition elements

Non-metals

7 / 32

Which of the following atoms obey duplet rule?

F₂

O₂

N₂

H₂

8 / 32

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

O₂

H₂

N₂

F₂

9 / 32

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

2

4

3

6

10 / 32

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

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

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

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

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

11 / 32

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

Biggest atom

Smallest atom

Central atom

Positive atom

12 / 32

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

Noble metal

Noble gas

Hydrogen gas

Halogen gas

13 / 32

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

4

3

2

1

14 / 32

In Hydrogen Iodide (HI), the bond is:

Non polar covalent bond

Polar covalent bond

Co-ordinate covalent bond

Ionic bond

15 / 32

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

Sodium forms cation

Each sodium atom loses one electron

Each sulphur atom gains one electron

Sulphur forms anion

16 / 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

17 / 32

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

Atomic Number : 10 Mass Number : 20

Atomic Number : 8 Mass Number : 16

Atomic Number : 14 Mass Number : 28

Atomic Number : 12 Mass Number : 24

18 / 32

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

MgF₂

CO₂

NaCl

MgO

19 / 32

Which of the following atoms will form cation?

Atomic number 20

Atomic number 15

Atomic number 17

Atomic number 18

20 / 32

Hydrogen bonding is involved in:

Adhesive action of paints

Conductance of electricity

Formation of crystals in NaCl

Van der Waal's force

21 / 32

Ionic compounds as a whole are:

Negatively charged

None of these

Electrically neutral

Positively charged

22 / 32

Which substance is NOT covalent?

HCN

H₂O

CaO

CO₂

23 / 32

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

Its covalent nature

Its higher density

Hydrogen bonding

Its higher molecular mass

24 / 32

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

Electron pair

Lone pair

None of these

Shared pair

25 / 32

Identify the covalent compound:

MgO

NaCl

KF

H₂O

26 / 32

The metal atoms form:

Both Cations and Anions

None of these

Anions

Cations

27 / 32

Which of the following substance has ionic bond?

MgO

SO₂

CO₂

H₂O

28 / 32

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

29 / 32

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)

30 / 32

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

Next Halogen gas element

Next noble gas element

Next noble metal element

All of these

31 / 32

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

NH₃

N₂O₄

N₂

NO₂

32 / 32

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

3

4

5

2

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