Table of contents

1. Intro to General Chemistry3h 48m
2. Atoms & Elements4h 16m
3. Chemical Reactions4h 10m
4. BONUS: Lab Techniques and Procedures1h 38m
5. BONUS: Mathematical Operations and Functions48m
6. Chemical Quantities & Aqueous Reactions3h 53m
7. Gases3h 49m
8. Thermochemistry2h 37m
9. Quantum Mechanics2h 58m
10. Periodic Properties of the Elements3h 9m
11. Bonding & Molecular Structure3h 29m
12. Molecular Shapes & Valence Bond Theory1h 57m
13. Liquids, Solids & Intermolecular Forces2h 23m
14. Solutions3h 1m
15. Chemical Kinetics2h 53m
16. Chemical Equilibrium2h 29m
17. Acid and Base Equilibrium5h 1m
18. Aqueous Equilibrium4h 47m
19. Chemical Thermodynamics1h 50m
20. Electrochemistry2h 42m
21. Nuclear Chemistry2h 36m
22. Organic Chemistry5h 7m
23. Chemistry of the Nonmetals2h 39m
24. Transition Metals and Coordination Compounds3h 16m

13. Liquids, Solids & Intermolecular Forces

Molecular Polarity

General Chemistry

13. Liquids, Solids & Intermolecular Forces

Molecular Polarity

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Multiple Choice

Which of the following statements about the polarity of covalent bonds is correct?

A covalent bond is nonpolar if the electronegativity difference is large.

A covalent bond is polar if the bonded atoms are identical.

A covalent bond is polar if the electronegativity difference between the bonded atoms is significant.

A covalent bond is nonpolar if the bonded atoms have different electronegativities.

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Verified step by step guidance

Understand the concept of electronegativity: Electronegativity is a measure of an atom's ability to attract and hold onto electrons in a chemical bond. The greater the electronegativity difference between two atoms, the more polar the bond.

Define polar and nonpolar covalent bonds: A polar covalent bond occurs when there is a significant difference in electronegativity between the two bonded atoms, causing an unequal sharing of electrons. A nonpolar covalent bond occurs when the electronegativity difference is minimal, leading to equal sharing of electrons.

Analyze the given statements: Evaluate each statement based on the definitions of polar and nonpolar covalent bonds. Consider the role of electronegativity differences in determining bond polarity.

Evaluate the first statement: 'A covalent bond is nonpolar if the electronegativity difference is large.' This is incorrect because a large electronegativity difference typically results in a polar bond, not a nonpolar one.

Evaluate the second statement: 'A covalent bond is polar if the bonded atoms are identical.' This is incorrect because identical atoms have no electronegativity difference, resulting in a nonpolar bond. The correct statement is that a covalent bond is polar if the electronegativity difference between the bonded atoms is significant.