Figure 1 Shown Below Is the Structure of Caffeine in the Centre

question 33

Multiple Choice

Figure 1
Shown below is the structure of caffeine in the centre and two different resonance states I and II with lone pairs and formal charges omitted.
-Referring to Figure 1,what is the formal charge of the nitrogen atom at F?

• A)-1
• B)0
• C)+1
• D)+2

---

Definitions:

Cytoplasm

Cellular matter, not including the nucleus of a cell.

Sciatica

Inflammation and pain along the sciatic nerve felt at the back of the thigh running down the inside of the leg.

Multiple Sclerosis (MS)

A chronic autoimmune disease affecting the central nervous system, leading to varying levels of physical and cognitive impairments.

Tourette Syndrome

A neurological disorder characterized by repetitive, involuntary movements and vocalizations called tics.