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Chemical Bonding Practice Tests

These Grade 10 Science practice tests develop ionic, covalent, and metallic bonding, valence electrons, the octet rule, Lewis structures, compound formulas, polarity, molecular shape, and intermolecular forces.

Skills covered

  • Distinguishing ionic, covalent, and metallic bonds by tracking electron transfer, sharing, and mobility
  • Using valence electrons, the octet rule, Lewis structures, lone pairs, and bond order
  • Writing neutral ionic formulas for common cations and anions using charge balance
  • Explaining electronegativity, polar and nonpolar bonds, molecular polarity, and molecular shape
  • Comparing hydrogen bonding, dipole-dipole forces, London dispersion forces, and intramolecular bonds

How to use these practice tests

Count valence electrons first, then decide whether atoms transfer or share electrons. For formulas, balance charges; for molecular polarity, consider both bond polarity and the overall shape.

For more Grade 10 Science practice, return to the Grade 10 Science category.

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Grade 10 Chemical Bonding Practice Tests

Practice Grade 10 Science questions about ionic, covalent, and metallic bonding, valence electrons, octet rule, Lewis structures, formulas, polarity, and intermolecular forces.

Choose the best answer. Track valence electrons, charge, sharing or transfer, Lewis structures, molecular shape, polarity, and compound formulas.

10 Questions
0/10 Questions0 %
Correct 0
Incorrect 0
Unanswered 10
1. QuestionMultiple choice

What happens when sodium chloride forms?

Please select an answer first.

Correct answer: A

The correct answer is Sodium transfers an electron to chlorine, forming Na⁺ and Cl⁻..

  1. Identify the bonding concept: Determine whether the question asks about ionic, covalent, or metallic bonding, Lewis structures, polarity, formulas, or intermolecular forces.
  2. Track electrons and charge: Sodium loses one valence electron and chlorine gains it, producing oppositely charged ions.
  3. Check the structure or property: The correct answer is Sodium transfers an electron to chlorine, forming Na⁺ and Cl⁻..

Sodium loses one valence electron and chlorine gains it, producing oppositely charged ions.

2. QuestionMultiple choice

What is the correct formula for magnesium chloride?

Please select an answer first.

Correct answer: B

The correct answer is MgCl₂.

  1. Identify the bonding concept: Determine whether the question asks about ionic, covalent, or metallic bonding, Lewis structures, polarity, formulas, or intermolecular forces.
  2. Track electrons and charge: Mg²⁺ requires two Cl⁻ ions to create a neutral compound.
  3. Check the structure or property: The correct answer is MgCl₂.

Mg²⁺ requires two Cl⁻ ions to create a neutral compound.

3. QuestionMultiple choice

Which property is typical of many ionic compounds?

Please select an answer first.

Correct answer: C

The correct answer is They have high melting points because strong attractions hold their ions in a lattice..

  1. Identify the bonding concept: Determine whether the question asks about ionic, covalent, or metallic bonding, Lewis structures, polarity, formulas, or intermolecular forces.
  2. Track electrons and charge: Strong electrostatic attractions in an ionic lattice require substantial energy to overcome.
  3. Check the structure or property: The correct answer is They have high melting points because strong attractions hold their ions in a lattice..

Strong electrostatic attractions in an ionic lattice require substantial energy to overcome.

4. QuestionMultiple choice

What is an ionic crystal lattice?

Please select an answer first.

Correct answer: D

The correct answer is A repeating three-dimensional arrangement of positive and negative ions.

  1. Identify the bonding concept: Determine whether the question asks about ionic, covalent, or metallic bonding, Lewis structures, polarity, formulas, or intermolecular forces.
  2. Track electrons and charge: Ions in a solid ionic compound form an ordered repeating structure.
  3. Check the structure or property: The correct answer is A repeating three-dimensional arrangement of positive and negative ions.

Ions in a solid ionic compound form an ordered repeating structure.

5. QuestionMultiple choice

Why does electron transfer often occur between a metal and a nonmetal?

Please select an answer first.

Correct answer: A

The correct answer is The metal can lose valence electrons while the nonmetal can gain them..

  1. Identify the bonding concept: Determine whether the question asks about ionic, covalent, or metallic bonding, Lewis structures, polarity, formulas, or intermolecular forces.
  2. Track electrons and charge: Metallic and nonmetallic electron tendencies complement each other in ionic bonding.
  3. Check the structure or property: The correct answer is The metal can lose valence electrons while the nonmetal can gain them..

Metallic and nonmetallic electron tendencies complement each other in ionic bonding.

6. QuestionMultiple choice

When can an ionic compound conduct electricity?

Please select an answer first.

Correct answer: B

The correct answer is When its ions are free to move in a molten or aqueous state.

  1. Identify the bonding concept: Determine whether the question asks about ionic, covalent, or metallic bonding, Lewis structures, polarity, formulas, or intermolecular forces.
  2. Track electrons and charge: Moving ions carry electric charge in molten ionic compounds or solutions.
  3. Check the structure or property: The correct answer is When its ions are free to move in a molten or aqueous state.

Moving ions carry electric charge in molten ionic compounds or solutions.

7. QuestionMultiple choice

Why are solid ionic compounds usually brittle?

Please select an answer first.

Correct answer: C

The correct answer is Shifting layers can place like charges next to each other, causing the lattice to split..

  1. Identify the bonding concept: Determine whether the question asks about ionic, covalent, or metallic bonding, Lewis structures, polarity, formulas, or intermolecular forces.
  2. Track electrons and charge: A displacement in the lattice can align like charges, producing repulsion and fracture.
  3. Check the structure or property: The correct answer is Shifting layers can place like charges next to each other, causing the lattice to split..

A displacement in the lattice can align like charges, producing repulsion and fracture.

8. QuestionMultiple choice

Why must an ionic compound have an overall neutral charge?

Please select an answer first.

Correct answer: D

The correct answer is The total positive charge and total negative charge must balance..

  1. Identify the bonding concept: Determine whether the question asks about ionic, covalent, or metallic bonding, Lewis structures, polarity, formulas, or intermolecular forces.
  2. Track electrons and charge: The formula ratio is selected so the combined charges sum to zero.
  3. Check the structure or property: The correct answer is The total positive charge and total negative charge must balance..

The formula ratio is selected so the combined charges sum to zero.

9. QuestionMultiple choice

Which pair is most likely to form an ionic compound?

Please select an answer first.

Correct answer: A

The correct answer is Calcium and fluorine.

  1. Identify the bonding concept: Determine whether the question asks about ionic, covalent, or metallic bonding, Lewis structures, polarity, formulas, or intermolecular forces.
  2. Track electrons and charge: Calcium is a metal and fluorine is a nonmetal, so electron transfer can form Ca²⁺ and F⁻.
  3. Check the structure or property: The correct answer is Calcium and fluorine.

Calcium is a metal and fluorine is a nonmetal, so electron transfer can form Ca²⁺ and F⁻.

10. QuestionMultiple choice

How are ionic compounds different from molecular compounds?

Please select an answer first.

Correct answer: B

The correct answer is Ionic compounds contain ions in a lattice, while molecular compounds contain covalently bonded molecules..

  1. Identify the bonding concept: Determine whether the question asks about ionic, covalent, or metallic bonding, Lewis structures, polarity, formulas, or intermolecular forces.
  2. Track electrons and charge: The particle arrangement and bonding type distinguish ionic lattices from discrete covalent molecules.
  3. Check the structure or property: The correct answer is Ionic compounds contain ions in a lattice, while molecular compounds contain covalently bonded molecules..

The particle arrangement and bonding type distinguish ionic lattices from discrete covalent molecules.

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