Class 9 Chemistry MCQs Tests

This page contains all the online tests for Class 9 Chemistry MCQs. Students should do the practice of all these tests for getting good marks in FBISE board exams.



Chapter 1


Atomic Numbers and Atomic Masses
Practice MCQs Test No 1
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Class 9 Chemistry

Chapter 1

Atomic Numbers and Atomic Masses

MCQs Test No 1

1 / 10

The nitrogen has 7 protons in its nucleus, its atomic number is:

2 / 10

The atomic mass of Sodium is 23, its atomic number is:

3 / 10

The symbol of Sodium is:

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The atomic number of Helium (He) is:

5 / 10

The atomic number and atomic mass of Magnesium are ______ and _______.

6 / 10

Atomic number of Oxygen is 8, its atomic mass is:

7 / 10

Atomic number of Aluminum is 13, its atomic mass is:

8 / 10

The symbol of Hydrogen is H, its atomic number is 1, and its atomic mass is:

9 / 10

Atomic number, atomic mass and Symbol of Potassium are:

10 / 10

The atomic mass of Carbon is:

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The average score is 76%

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Practice MCQs Test No 2
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Class 9 Chemistry

Chapter 1

Branches of Chemistry

Practice MCQs Test 2

1 / 16

A chemist performed an experiment to check the percentage purity of a sample of glucose (C6 H12 O6).

2 / 16

Haber’s process converts large quantities of hydrogen and nitrogen into ammonia (NH3 ).

3 / 16

Gases can be compressed by applying pressure.

4 / 16

Chlorofluorocarbon compounds are responsible for the depletion of ozone layer.

5 / 16

Element radium decays by emitting α-particles and is converted into another element radon.

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Ammonia is a colourless gas with a pungent irritating odour. It is highly soluble in water.

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Acetylene is the simplest hydrocarbon that contains a carbon-carbon triple bond. Hydrocarbons are the compounds of carbon and hydrogen.

8 / 16

Calorimeter is a device that measures the amount of heat, a substance absorbs on heating or emits on cooling.

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Hair contain a special class of proteins called keratins, which are present in nails and wool. Proteins contain chains of C-atoms.

10 / 16

White lead is a pigment used by artists for centuries, the metal Pb in the compound is extracted from its ore, galena (PbS).

11 / 16

An analyst determines that NO2 is responsible for acid rain.

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Plantation helps in overcoming the greenhouse effect.

13 / 16

Some examples of complete protein food are meat, milk, and eggs.

14 / 16

Photosynthesis produces glucose and oxygen from carbon dioxide and water in presence of chlorophyll and sunlight.

15 / 16

Sulphuric acid (H2 SO4) is extremely corrosive to skin.

16 / 16

α-particles (He++) when bombard on nitrogen atom, a proton is emitted.

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Practice MCQs Test No 3
0

Class 9 Chemistry

Chapter 1

Branches of Chemistry

Practice MCQs Test 3

1 / 10

Ice floats on water.

2 / 10

In Pakistan, most of the factories use wet process for the production of cement.

3 / 10

A cornstalk grows from a seed.

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Sulphur dioxide is the major source of acid rain.

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Gasoline (a mixture of hydrocarbons) fumes are ignited in an automobile engine.

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Many other light chlorinated hydrocarbons in drinking water are carcinogens.

7 / 10

Purple iodine vapour appears when solid iodine is warmed.

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Carbon-14 is continuously produced in the atmosphere when high energy neutrons from space collide with nitrogen-14.

9 / 10

Dynamite (C3 H5 N3 O9) explodes to form a mixture of gases.

10 / 10

A silver article tarnishes in air.

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The average score is 0%

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Practice MCQs Test No 4
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Class 9 Chemistry

Chapter 1

Practice MCQs Test No 4

1 / 10

A compound with chemical formula Na2CX3 has formula mass 106 amu. What is the atomic mass of the element X?  [Atomic Masses: C=12, Na=23]

2 / 10

The empirical formula for caffeine (C8H10N4O2) is:

3 / 10

How many moles of Na atoms are present in 2.3 g of Na?

4 / 10

0.25 moles of SO2 will contain:

5 / 10

Atomic masses of H and O are 1 amu and 16 amu respectively. The molecular mass of hydrogen peroxide (H2O2) is:

6 / 10

If molar mass of a compound is 90 g/mole, the number of its moles containing 3.011×1023 molecules will be:

7 / 10

How many atoms are there in 0.1 moles of Carbon?

8 / 10

A compound with chemical formula BaSX4 has a formula mass 233 amu. Atomic mass of the element X is:

9 / 10

Which of the following is the correct empirical formula of C6H4O(NO2)3?

10 / 10

How many atoms are there in 1.25 moles of Zinc?

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Chapter 2

Practice MCQs Test No 1
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Class 9 Chemistry

Chapter 2

Practice MCQs Test No 1

1 / 13

A sub-shell that can accommodate 6 electrons is:

2 / 13

Identify the number of electrons that f-sub shell can accommodate.

3 / 13

Value of Plank’s constant is:

4 / 13

Which of the following is a defect of Rutherford atomic model?

5 / 13

According to Bohr atomic model:

6 / 13

Rutherford used _____ particles in his experiments.

7 / 13

Which one of the following sub shell is filled after filling of 3p sub shell?

8 / 13

Carbon has __________ isotopes.

9 / 13

Number of neutrons in 27M13 are:

10 / 13

11Na has electronic configuration:

11 / 13

Chlorine has two isotopes, both of which have:

12 / 13

Keeping in view Auf Bau Principle, identify the energy level which the elements fill first.

13 / 13

M shell has sub-shells:

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The average score is 70%

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Practice MCQs Test No 2
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Class 9 Chemistry

Chapter 2

Practice MCQs Test No 2

1 / 14

Isotopes of an element have similar:

2 / 14

Identify the isotope used as a Tracer in diagnosing Thyroid problem:

3 / 14

As the value of n increases: 

4 / 14

Chemical properties of an element depend upon the number of:

5 / 14

Which isotope is used to trace the path of carbon in photosynthesis?

6 / 14

When Uranium-238 decays into Thorium-234, it emits:

7 / 14

Which isotope of Uranium is rare?

8 / 14

The fission of uranium–235 yields:

9 / 14

Which of the following statement is not correct about isotopes?

10 / 14

Which of the following isotopes is used to trace the flow of blood and detect possible constrictions or obstructions in the circulatory system?

11 / 14

Which isotope is commonly used to irradiate cancer cells?

12 / 14

The nuclear energy released by the fission of one kilogram of uranium–235 is equivalent to chemical energy produced by burning more than:

13 / 14

_______ do not take part in ordinary chemical reactions.

14 / 14

Which isotope is used in nuclear reactors?

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The average score is 51%

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Practice MCQs Test No 3
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Class 9 Chemistry

Chapter 2

Practice MCQs Test No 3

1 / 15

The word isotopes was first used by scientist

2 / 15

The energy of an electron in an orbit is proportional to

3 / 15

Electrons revolve only in those orbits with angular momentum as an

4 / 15

Which carbon is not black in colour?

5 / 15

Formula for heavy water is:

6 / 15

Rutherford use ________ as a source of alpha particles.

7 / 15

TRITIUM has number of neutrons

8 / 15

Almost entire mass of an atom is concentrated in the

9 / 15

When an electron changes its orbit from higher to lower, energy is

10 / 15

Maximum number of electrons in a shell can be calculated by

11 / 15

Which of the following is a defect of Rutherford atomic model?

12 / 15

_________ is highly inflammable gas.

13 / 15

All the isotopes of carbon are _______ in water.

14 / 15

Alpha particles which were deflected backward in Rutherford's experiment were hit upon by

15 / 15

The value of Planks constant is

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Practice MCQs Test No 4
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12

Class 9 Chemistry

Chapter 2

Practice MCQs Test No 4

1 / 15

An element is placed in second period of periodic table and have six protons and six neutrons in its nucleus. The element is _____.

2 / 15

Which isotope can be used for radiotherapy for cancer patients?

3 / 15

Energy released by the isotopes uranium - 235 is due to the process:

4 / 15

Which of the following is true about the isotopes?

5 / 15

Which of the following isotopes of uranium is most abundant?

6 / 15

According to 2n2 rule, L-Shell contains maximum___ electrons.

7 / 15

Maximum number of electrons in d sub shell are:

8 / 15

Atomic number of Na is 11. electronic configuration of the Na is _____.

9 / 15

Correct increasing order of energy of sub shell is:

10 / 15

Electronic configuration of an element is as shown: 1s2, 2s2, 2p6, 3s2, 3p5 Identify the element which contains this electronic configuration.

11 / 15

We can compare the activity of isotopes of carbon from skull and jaw bones of dead organism.

12 / 15

_{ 17 }^{ 37 }{ Cl } has how many protons?

13 / 15

Electronic configuration for an element is as shown. 1s2, 2s2, 2p6, 3s2, 3p5 . Which of the following is correct regarding this electronic arrangement?

14 / 15

An element has two protons in its nucleus. The symbol of the element is _____.

15 / 15

Sub shells are also called as:

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Chapter 3


Practice MCQs Test No 1
12

Class 9 Chemistry

Chapter 3

Practice MCQs Test No 1

1 / 20

Elements are arranged in the order of increasing:

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By 1925, ____ elements were known.

3 / 20

Elements with similar valance shell electronic configuration are placed in the same:

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The horizontal rows of the periodic table are called:

5 / 20

First _____ periods are called short periods.

6 / 20

Metallic elements in Group 1A are called:

7 / 20

Number of periods in the Periodic table are:

8 / 20

By the end of 18th century, _______ elements were known.

9 / 20

On the basis of outermost valence sub-shell, elements in the periodic table can also be classified into:

10 / 20

Last _____ periods are long periods.

11 / 20

Each vertical column of elements in the periodic table is called a:

12 / 20

Group B elements are called:

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Elements of Group IA and Group IIA contain their valence electrons in:

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A table showing systematic arrangement of elements is called:

15 / 20

The Group VIIIA elements are called:

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Group IIA elements are called:

17 / 20

Group A elements are called:

18 / 20

The elements of Group VIIA are called:

19 / 20

The atomic number was discovered in:

20 / 20

Atomic number was discovered by:

Your score is

The average score is 71%

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Practice MCQs Test No 2
8

Class 9 Chemistry

Chapter 3

Practice MCQs Test 2

1 / 20

The number of electrons in the valence shell of halogens are _____.

2 / 20

Across a period (left to right), shielding effect _____.

3 / 20

The number of electrons in the valence shell of alkali metals is _____

4 / 20

The number of elements in the first period is _____.

5 / 20

John Newland found the similarity in properties of every ________ element.

6 / 20

Element having configuration 1s2 belongs to group:

7 / 20

__________ of element indicates the number of electrons in the valence shell.

8 / 20

The elements of Group IIIA to VIIIA (except He) are known as:

9 / 20

Physical properties depend on the:

10 / 20

Which of the elements are not p-block representative elements?

11 / 20

____________ of element indicates n value of the valence shell.

12 / 20

What is the period number of Nitrogen -7 ?

13 / 20

Valence shell configuration of Na is:

14 / 20

Which of the following has the lowest shielding effect?

15 / 20

Chemical properties depend on the:

16 / 20

The elements of B-group are called _____.

17 / 20

The horizontal rows in a periodic table are known as _____.

18 / 20

Which of the following has the highest shielding effect?

19 / 20

Elements in the same vertical group of the periodic table have same _____.

20 / 20

Because all the elements of a particular group have similar valence shell electronic configuration, they possess similar:

Your score is

The average score is 73%

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Practice MCQs Test No 3
/15
8

Class 9 Chemistry

Chapter 3

Practice MCQs Test No 3

1 / 15

The number of electrons in the valence shell of halogens are _____.

2 / 15

The number of electrons in the valence shell of alkali metals is _____.

3 / 15

Which of the following has the highest shielding effect?

4 / 15

The elements of B-group are called _____.

5 / 15

Elements in the same vertical group of the periodic table have same _____.

6 / 15

Which of the following has the lowest shielding effect?

7 / 15

John Newland found the similarity in properties of every ------ element.

8 / 15

Across a period (left to right), shielding effect _____.

9 / 15

The horizontal rows in a periodic table are known as _____.

10 / 15

Which of the elements are not p-block representative elements?

11 / 15

Atomic number is discovered by

12 / 15

Element having configuration 1s2 belongs to group

13 / 15

The number of elements in the first period is _____.

14 / 15

Valence shell configuration of Na is

15 / 15

What is the period number of Nitrogen -7 ?

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Practice MCQs Test No 4
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9

Class 9 Chemistry

Chapter 3

Practice MCQs Test No 4

1 / 15

Arrange the elements in decreasing ionization energy.

2 / 15

Ionization energy is a/an _____.

3 / 15

The state required for Chlorine to release energy and form a uninegative ion is _____.

4 / 15

Which of these represents an element with a large electron affinity?

5 / 15

Atomic radii decreases because of

6 / 15

Electronegativity refers to _____.

7 / 15

Which of the following has the highest electron affinity?

8 / 15

Negative sign is given to electron affinity because energy is _____.

9 / 15

Ionization energy is measured in _____.

10 / 15

Electron affinity involves _____.

11 / 15

When atomic radius increases, electron affinity _____.

12 / 15

In general, ionization energy _____ going bottom to top within a group in the periodic table.

13 / 15

Ionization results in the ejection of _____.

14 / 15

Element in group II A with smallest atomic radius is _____.

15 / 15

Which element has the highest electronegativity?

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Chapter 8

Practice MCQs Test No 1
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Class 9 Chemistry

Chapter 8

Practice MCQs Test No 1

1 / 15

Which of the following metals will have the lowest melting point?

2 / 15

Which alloy is used by dentists?

3 / 15

Choose the correct order for metallic character.

4 / 15

Name the Property of elements to lose electron and become cation .

5 / 15

As we go from Li to Cs, electropositive character _____.

6 / 15

Nature of oxides of aluminium are

7 / 15

Potassium super oxide react with moisture and carbon dioxide and produce

8 / 15

Metallic bonding involves _____.

9 / 15

Name the mixture to which gold and platinum can react.

10 / 15

Which of the following will react with most ease with oxygen present in the air?

11 / 15

Which of the following does not represent a symbol for noble metal?

12 / 15

Which of the following metals is NOT an active metal?

13 / 15

Copper nickle alloy is used to make

14 / 15

Electropositive character is also known as _____.

15 / 15

Among all the alkali metals, cesium has the lowest ionization energy. Which of these will then have the highest electropositive character?

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Practice MCQs Test No 2
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13

Class 9 Chemistry
Chapter 8
Practice MCQs Test No 2

1 / 10

When hydrogen halides dissolve in water , it will form

2 / 10

Which of the following halogens does NOT exist in diatomic form?

3 / 10

The correct increasing acidic strength of acids of halogens is

4 / 10

The only non-metal that exists in liquid state is _____.

5 / 10

Which of the following elements will have the highest electronegativity?

6 / 10

Which non metal is the most non metallic ?

7 / 10

Which of the following elements is NOT a non-metal?

8 / 10

When halogens and metals react , they form salts called

9 / 10

Atoms with high electronegative character prefer to form _____.

10 / 10

Fluorine can oxidize all halide ions because of high

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