Questions: Describe the difference between a pure covalent bond and a polar covalent bond Check all that apply - A pure covalent bond occurs when bonding electrons are shared equally (or very close to it), as in the C-O bond - A pure covalent bond occurs when bonding electrons are shared equally (or very close to it), as in the N-N bond - A polar covalent bond is formed between two atoms of differing electronegativities. The bonding electrons are unequally shared between the two atoms, as in the CO molecule. - A polar covalent bond is formed between two atoms of differing electronegativities. The bonding electrons are unequally shared between the two atoms, as in the 0-0 bond

Solution Steps

A pure covalent bond, also known as a nonpolar covalent bond, occurs when two atoms share electrons equally. This typically happens when the atoms involved have the same or very similar electronegativities. An example of this is the N-N bond, where both nitrogen atoms have the same electronegativity.

A polar covalent bond occurs when two atoms with differing electronegativities share electrons unequally. This results in a partial charge distribution, with one atom becoming slightly negative and the other slightly positive. An example of this is the C-O bond, where oxygen is more electronegative than carbon, leading to an unequal sharing of electrons.

• Statement 1: "A pure covalent bond occurs when bonding electrons are shared equally (or very close to it), as in the C-O bond." This is incorrect because the C-O bond is a polar covalent bond due to the difference in electronegativity between carbon and oxygen.

• Statement 2: "A pure covalent bond occurs when bonding electrons are shared equally (or very close to it), as in the N-N bond." This is correct because the N-N bond involves two nitrogen atoms with the same electronegativity, leading to equal sharing of electrons.

• Statement 3: "A pure covalent bond is formed between two atoms of differing electronegativities. The bonding electrons are unequally shared between the two atoms, as in the CO molecule." This is incorrect because a pure covalent bond involves equal sharing of electrons, not unequal sharing.

• Statement 4: "A polar covalent bond is formed between two atoms of differing electronegativities. The bonding electrons are unequally shared between the two atoms, as in the CO molecule." This is correct because the CO molecule has a polar covalent bond due to the difference in electronegativity between carbon and oxygen.

• Statement 5: "A polar covalent bond is formed between two atoms of differing electronegativities. The bonding electrons are unequally shared between the two atoms, as in the O-O bond." This is incorrect because the O-O bond is a pure covalent bond with equal sharing of electrons.

Final Answer