Covalent Bond — Prelims Questions

Which of the following molecules contains a coordinate covalent bond?

Which of the following statements about bond parameters is INCORRECT?

Which of the following molecules is nonpolar despite having polar covalent bonds?

What is the hybridization of the central carbon atom in $\text{CH}_2=\text{CH}_2$ (ethene)?

Which of the following statements correctly describes the properties of a triple bond compared to a single bond between the same two atoms?

Which of the following molecules has the shortest bond length for the carbon-oxygen bond?