Exploring Covalent Bonds and Structures

Which of the following best describes a single covalent bond?

• A bond formed by the sharing of two pairs of electrons.

• A bond formed by the sharing of one pair of electrons.

• A bond formed by the sharing of three pairs of electrons.

• A bond formed by the transfer of electrons.

What is the primary difference between a polar covalent bond and a nonpolar covalent bond?

• Polar covalent bonds involve the transfer of electrons, while nonpolar covalent bonds involve sharing.

• Polar covalent bonds have unequal sharing of electrons, while nonpolar covalent bonds have equal sharing.

• Polar covalent bonds are stronger than nonpolar covalent bonds.

• Polar covalent bonds occur only between metals, while nonpolar covalent bonds occur between nonmetals.

• Two single covalent bonds.

• One double covalent bond.

• One single and one double covalent bond.

• Two double covalent bonds.

Which of the following factors does NOT affect the strength of a covalent bond?

• Bond length

• Electronegativity difference

• Atomic size

• Number of neutrons in the nucleus

Which of the following molecules contains a polar covalent bond?

• Linear

• Trigonal planar

• Tetrahedral

• Bent

How does the bond length of a covalent bond relate to its bond strength?

• Longer bonds are stronger.

• Shorter bonds are stronger.

• Bond length does not affect bond strength.

• Bond length and strength are unrelated.

• The ion has one single and two double bonds.

• The ion has three equivalent resonance structures.

• The ion has two single and one double bond.

• The ion has no resonance structures.