Polarity of Molecules Worksheet
Explore the concepts of molecular polarity, electronegativity, and molecular geometry for Grade 11 Chemistry students.
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Polarity of Molecules
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Read each question carefully and provide the best answer based on your knowledge of molecular polarity.
1. Which of the following factors primarily determines if a bond is polar or nonpolar?
Atomic mass
Electronegativity difference
Number of valence electrons
Bond length
2. Which of the following molecules is generally considered nonpolar despite having polar bonds?
H2O
NH3
CO2
HCl
1. A molecule with symmetrical geometry will always be nonpolar.
True
False
2. The presence of lone pairs on the central atom always leads to a polar molecule.
True
False
1. A molecule with an uneven distribution of electron density is called a molecule.
2. The ability of an atom to attract electrons in a chemical bond is known as its .
3. If the electronegativity difference between two bonded atoms is zero, the bond is considered .
1. Explain why water (H2O) is a polar molecule, despite having two polar O-H bonds.
2. Carbon dioxide (CO2) has two polar C=O bonds. Why is the CO2 molecule nonpolar overall?
Match each term with its correct definition.
1. Dipole moment
a. Unequal sharing of electrons in a bond
2. Nonpolar covalent bond
b. A measure of the net molecular polarity
3. Polar covalent bond
c. Equal sharing of electrons in a bond