Polar Molecules Worksheet
Explore the concepts of polar and nonpolar molecules, electronegativity, and their impact on molecular properties with this Grade 11 chemistry worksheet.
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Polar Molecules: An Introduction
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Read each question carefully and provide your best answer. Use your knowledge of chemical bonding, electronegativity, and molecular geometry to determine molecular polarity.
1. Which of the following best describes a polar molecule?
A molecule with equally shared electrons between atoms.
A molecule with a symmetrical distribution of charge.
A molecule with an uneven distribution of electron density, creating partial positive and negative poles.
A molecule composed of only one type of atom.
2. High electronegativity difference between bonded atoms typically leads to:
Nonpolar covalent bonds
Ionic bonds
Polar covalent bonds
Metallic bonds
3. The ability of an atom to attract electrons in a chemical bond is called .
4. A molecule can have polar bonds but still be a nonpolar molecule if its molecular geometry is .
5. Explain why water (H2O) is a polar molecule, despite having two polar O-H bonds. Refer to its molecular geometry in your answer.
6. Carbon dioxide (CO2) has two polar C=O bonds. Why is the CO2 molecule considered nonpolar?
7. All molecules with polar bonds are polar molecules.
True
False
8. The greater the difference in electronegativity between two atoms, the more polar the bond.
True
False
Match the molecule type with its characteristic.
9. Polar Molecule
a. Symmetrical charge distribution
10. Nonpolar Molecule
b. Uneven charge distribution