An Organic Compound Absorbs Strongly in the IR at 1687

question 39

Multiple Choice

An organic compound absorbs strongly in the IR at 1687 cm^-1.Its ¹H NMR spectrum consists of two signals,a singlet at 2.1 ppm and a multiplet centered at 7.1 ppm.Its mass spectrum shows significant peaks at m/z 120,m/z 105 and m/z 77.This information is consistent with which of the following structures?

• A) I
• B) II
• C) III
• D) IV
• E) V

---

Definitions:

Plastic Surgery

Plastic surgery is a medical specialty involving the correction or restoration of form and function, often including procedures intended for cosmetic enhancement as well as reconstructive surgery.

Trapped

Feeling unable to escape a situation, physically or emotionally, often leading to stress or anxiety.

Alarm Reaction

A stage in the General Adaptation Syndrome that involves the initial response to stress, triggering the fight-or-flight response.

Heart Rate

The number of heartbeats per unit of time, typically measured in beats per minute (bpm), indicating cardiovascular health and physical conditioning.