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.

What is the role of methylchloride (CH3Cl) in the following reaction? 

What is the ground-state electronic configuration of a sodium cation?

Tamiflu®, the most effective antiviral drug used to treat avian influenza, has the following structure. Identify the indicated functional groups in Tamiflu®.

Which of the following lists the correct functional groups found in aspartame, the artificial sweetener? 

Which of the following represent identical molecules?

The C2–C3 bond in the following compound results from the overlap of which orbitals?