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Chemistry MCQs Online Free Practice Tests

Are you preparing for the initial academic test of the Pakistan Army, Navy, or Air Force? If so, you need to make sure you have a strong foundation in chemistry.

Chemistry is a fundamental science that is essential for understanding many of the concepts that will be covered on the test. By practicing with chemistry MCQs, you can test your knowledge and identify any areas where you need to improve.

There are many resources available to help you prepare for the chemistry mcqs section of the initial academic test. Books, online courses, and even mobile apps can provide you with the practice you need to succeed. If you have applied as an Officer in Pak Defence forces like; Army, Navy or PAF then do practice in the following tests.

Here are some of the most important chemistry MCQs concepts that you will need to know for the test:

Chemistry MCQs about Atomic structure
Chemistry MCQs about Chemical bonding
Chemistry MCQs about Chemical reactions
Chemistry MCQs about Stoichiometry
Chemistry MCQs about Thermodynamics
Chemistry MCQs about Kinetics
Chemistry MCQs about Electrochemistry

By mastering these concepts through Chemistry MCQs, you will be well on your way to passing the initial academic test and achieving your dream of joining the Pakistan Armed Forces. If you want to pass the tests of Chemistry MCQs subject then you must do practice here. When test ends then restart the test so that you may get new questions.

Online Practice Tests of Chemistry MCQs

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Chemistry (Advance) Quiz

The black image on an exposed and developed a photographic film is composed of:-

None of them

Ag2O

AgBr

The element which occur free in nature:-

Which method is used to separate smaller molecule from the larger molecules in diffusing through a membrane:-

Dialysis

HPLC

FPLC

Chromatography

Which can be analyzed by AAS:-

alkali metals and alkaline earth metals

p and B

All of the above

Transition metals

Which method is used for the separation of dissolved components from the solution;-

Electrophoresis

Dialysis

Chromatography

Solvent extraction

Which enzyme bring about the hydrolysis of fats:-

Lipase

Zymase

Maltase

Urease

____ is used for the artificial ripening of fruits:-

None of them

Both of them

Ethene

Methane

In unimolecular reaction, the reaction completes in:-

three steps

two steps

none of these

one step

C=O and C-C bond differentiated by:-

Bond length

Undergo addition reaction

Hybridization of C-atom

Planar structure

Which compound is not known:-

NCl5

NI3

NCl3

SbCl3

Which substance is used to convert alcohol to alkyl halide:-

HCl+ ZnCl2

all of these

SOCl2

PCl3

Which source is used as excitation source in fluorimeter:-

Tungsten lamp

Mercury vapor lamp

Nernst vapour lamp

Radio source

SN2 mechanism involves ____ order kinetics:-

second

none of them

zero

first

Most reactive alkali metal is:-

_____ reacts with H2 in dark:-

Br2

Cl2

Boyle's law is represented as:-

P ∝ 1/T

V ∝ 1/P

V ∝ T

V ∝ P

The number of electrons in the M-shell of element with atomic number 24 is:-

Which is not correct about the comparison of AAS and ICP-AES:-

Accuracy is better in AAS as compared to ICP-AES

Detection limit is better in AAS as compared to ICP-AES

Less interference in AAS as compared to ICP-AES

Normal skills are required in operating AAS as compared to ICP-AES

Ethanol can be converted in ethanoic acid by:-

Oxidation

Fermentation

Hydrogenation

Hydration

Which aldehyde is used to prepare urotropine medicine:-

Acetaldehyde

Acetone

Ethyl alcohol

Formaldehyde

Which range of concentration is correct for semi micro analysis:-

10-1000mg

10-100mg

1-10mg

20-1000mg

The physical property which employed in analytical method:-

All

Absorbance

Electric current

Conductance

Carbanians are:-

free radicals

electrophile

nucleophile

group of atoms

When electron de excite into orbit 1, then series obtained is:-

p fund

Paschen

Lyman

Brackets

Which compound should have lowest boiling point:-

C2H6

CH3-O-CH3

C2H5OH

C2H5Cl

Your score is

Chemistry MCQs for Pak Army

Which is not an element in “Water, Oxygen, Hydrogen, Carbon”? (Water)
What is the symbol for gold? (Au)
What is the atomic number of carbon? (6)
What is the chemical formula for water? (H₂O)
What is the name of the compound with the formula CO₂? (Carbon dioxide)

Chemistry MCQs for Pak Navy

What is the state of matter of water at room temperature? (Liquid)
What is the boiling point of water? (100°C)
What is the melting point of water? (0°C)
What is the density of water? (1 g/cm³)
What is the chemical formula for salt? (NaCl)

Chemistry MCQs for Pak Air Force

What is the name of the process by which water changes from a liquid to a gas? (Evaporation)
What is the name of the process by which water changes from a gas to a liquid? (Condensation)
What is the name of the process by which water changes from a solid to a liquid? (Melting)
What is the name of the process by which water changes from a solid to a gas? (Sublimation)
What is the name of the process by which a gas changes directly to a solid? (Deposition)

Initial Test Pak Army Regarding Chemistry MCQs

What is the scientific name for water? (H₂O)
What is the atomic number of oxygen? (8)
What is the chemical formula for carbon dioxide? (CO₂)
What is the name of the compound with the formula NaCl? (Sodium chloride)
What is the state of matter of water at room temperature? (Liquid)

Initial Test Pak Navy Regarding Chemistry MCQs

What is the boiling point of water? (100°C)
What is the melting point of water? (0°C)

Academic Test Pak Army in Chemistry MCQs

What is the difference between an element and a compound? (An element is a substance that cannot be broken down into simpler substances by chemical means, while a compound is a substance that is made up of two or more elements chemically combined.)
What are the three states of matter? (Solid, liquid, and gas)
What are the four fundamental forces of nature? (Gravity, electromagnetism, the strong force, and the weak force)
What is the law of conservation of mass? (Matter cannot be created or destroyed, only transformed.)
What is the law of definite proportions? (A chemical compound always contains the same elements in the same proportions by mass.)
What is the melting point of water? (0°C)

Academic Test Pak Navy in Chemistry MCQs

What is the pH scale? (A scale used to measure the acidity or basicity of a solution.)
What is a solution? (A mixture of two or more substances that are uniformly mixed together.)
What is a solvent? (The substance that dissolves another substance in a solution.)
What is an solute? (The substance that is dissolved in a solvent.)
What is a precipitate? (A solid that forms when two solutions are mixed.)

Academic Test Pak Navy

What is chemistry? (The study of matter and its properties, and the changes that matter undergoes.)
What are the four fundamental substances of matter? (Atoms, molecules, ions, and compounds)
What are the three states of matter? (Solid, liquid, and gas)
What are the four fundamental forces of nature? (Gravity, electromagnetism, the strong force, and the weak force)
What is the law of conservation of mass? (Matter cannot be created or destroyed, only transformed.)

Chemistry for Pak Navy

What is the pH scale? (A scale used to measure the acidity or basicity of a solution.)
What is a solution? (A mixture of two or more substances that are uniformly mixed together.)
What is a solvent? (The substance that dissolves another substance in a solution.)
What is an solute? (The substance that is dissolved in a solvent.)
What is a precipitate? (A solid that forms when two solutions are mixed.)

FAQs about Chemistry Questions

What is the difference between an element and a compound?

An element is a substance that cannot be broken down into simpler substances by chemical means, while a compound is a substance that is made up of two or more elements chemically combined. For example, hydrogen is an element, while water is a compound made up of hydrogen and oxygen.

What are the three states of matter?

The three states of matter are solid, liquid, and gas. A solid has a definite shape and volume, a liquid has a definite volume but no definite shape, and a gas has neither a definite shape nor a definite volume.

What is the law of conservation of mass?

The law of conservation of mass states that matter cannot be created or destroyed, only transformed. This means that the total mass of the reactants in a chemical reaction must equal the total mass of the products.

What is the pH scale?

The pH scale is a scale used to measure the acidity or basicity of a solution. A pH of 7 is neutral, a pH below 7 is acidic, and a pH above 7 is basic.

What is a solution?

A solution is a mixture of two or more substances that are uniformly mixed together. The solvent is the substance that dissolves the solute. For example, water is the solvent in a solution of salt water.