In this post, we have prepared 4 MCQs tests of Federal Board Chemistry 9 Chapter 1 MCQs Tests. For more Class 9 Chemistry MCQs Tests visit this page.


Chemistry 9 Chapter 1 MCQs Tests


Practice MCQs Test No 1

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432

Class 9 Chemistry

Chapter 1

Atomic Numbers and Atomic Masses

MCQs Test No 1

1 / 10

Atomic number, atomic mass and Symbol of Potassium are:

2 / 10

The atomic number of Helium (He) is:

3 / 10

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

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

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

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The symbol of Sodium is:

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The atomic mass of Carbon is:

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

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

10 / 10

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

Your score is

The average score is 74%

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Practice MCQs Test No 2

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196

Class 9 Chemistry

Chapter 1

Branches of Chemistry

Practice MCQs Test 2

1 / 16

An analyst determines that NO2 is responsible for acid rain.

2 / 16

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

3 / 16

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

4 / 16

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

5 / 16

Chlorofluorocarbon compounds are responsible for the depletion of ozone layer.

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Gases can be compressed by applying pressure.

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

8 / 16

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

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

10 / 16

Plantation helps in overcoming the greenhouse effect.

11 / 16

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

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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.

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

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

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

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

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Practice MCQs Test No 3

138

Class 9 Chemistry

Chapter 1

Branches of Chemistry

Practice MCQs Test 3

1 / 10

Many other light chlorinated hydrocarbons in drinking water are carcinogens.

2 / 10

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

3 / 10

A cornstalk grows from a seed.

4 / 10

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

5 / 10

Purple iodine vapour appears when solid iodine is warmed.

6 / 10

Ice floats on water.

7 / 10

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

8 / 10

A silver article tarnishes in air.

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

10 / 10

Sulphur dioxide is the major source of acid rain.

Your score is

The average score is 44%

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Practice MCQs Test No 4

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197

Class 9 Chemistry

Chapter 1

Practice MCQs Test No 4

1 / 10

How many atoms are there in 1.25 moles of Zinc?

2 / 10

0.25 moles of SO2 will contain:

3 / 10

The empirical formula for caffeine (C8H10N4O2) is:

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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]

5 / 10

How many atoms are there in 0.1 moles of Carbon?

6 / 10

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

7 / 10

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

8 / 10

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

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

10 / 10

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

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