Chemistry Basic Concepts Quiz Online

Chemistry basic and fundamentals concepts are essential to learning for every level in chemistry courses. Here, we have compiled many chemistry fundamental concepts quizes free for students of grades 11 and 12. We hope you will find this very useful for your regular exam preparations and entry tests at undergraduate levels, particularly for medical and engineering students (MDCAT, ECAT, NUST, NUMS, JEE, NEET).
Before taking this quiz, you can revise your fundamental concepts in chemistry by using the following of our free resources.

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INSTRUCTIONS:

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Results

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#1. Percentage of Oxygen in H2O Is:

80%

80%

88.8%

88.8%

8.8%

8.8%

9.8%

9.8%

#2. More Abundant Isotope of an Element Is One With:

Odd Mass No.

Odd Mass No.

Even Atomic No.

Even Atomic No.

Even Mass No.

Even Mass No.

Odd Atomic No.

Odd Atomic No.

#3. Large No. Of Isotopes Are Known For the Elements Whose Masses Are Multiple Of:

Two

Two

Four

Four

Eight

Eight

Six

Six

#4. A Sample of Pure Matter Is:

Mixture

Mixture

Element

Element

Substance

Substance

Compound

Compound

#5. Nm Stands For:

None of The Above

None of The Above

Newton Square Meter

Newton Square Meter

Newton Meter

Newton Meter

Nanometer

Nanometer

#6. One Calorie Is Equal To:

41.84 J

41.84 J

0.4184 J

0.4184 J

4.184 J

4.184 J

0.04184 J

0.04184 J

#7. The Mass of One Mole of Electron Is:

1.673 Mg

1.673 Mg

0.55 Mg

0.55 Mg

0.184 Mg

0.184 Mg

1.008 Mg

1.008 Mg

#8. Isotopes Differ In:

The Extent to Which They May Be Affected In Electromagnetic Field

The Extent to Which They May Be Affected In Electromagnetic Field

Chemical Properties

Chemical Properties

Arrangements of Electrons in Orbital

Arrangements of Electrons in Orbital

Properties Which Depend On Mass

Properties Which Depend On Mass

#9. Many Elements Have Fractional Atomic Mass. This Is Because:

The Mass Atom Is Itself Fractional

The Mass Atom Is Itself Fractional

Atomic Masses Are Averages Masses of Isotopes

Atomic Masses Are Averages Masses of Isotopes

Atomic Masses Are Average Masses of Isobars

Atomic Masses Are Average Masses of Isobars

Atomic Masses Are Average Masses of Isotopes Proportional to Relative Abundance

Atomic Masses Are Average Masses of Isotopes Proportional to Relative Abundance

#10. A Molecule Having Two Atoms Is Called:

Homo atomic Molecule

Homo atomic Molecule

Diatomic Molecules

Diatomic Molecules

Monoatomic Molecules

Monoatomic Molecules

Polyatomic Molecules

Polyatomic Molecules

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