The following reaction mechanism contains mistakes. Which of the following statements correctly describes how the curved arrows should be drawn?

Identify the structure that shows the correct placement of all lone pairs for the compound illustrated in the box below.

Identify the functional groups indicated in the following compound.

Which set of curved arrows accounts for the deprotonation of an acid (A-H) by a base (:B)?

What base is formed in the following acid-base reaction?

Bonus question Histidine an amino acid has the following structure. Rank the indicated protons in order of increasing acidity.

The sigma bond that is part of C=N in the following compound results from the overlap of which orbitals?

Which one of the following mechanistically depicts the protonation of methanol by hydrogen bromide?

Identify from the options given the proper curved arrow to convert the first resonance structure into the second resonance structure.

Identify the conjugate base of the compound shown in the box below.