Question

While the carbonyl stretching frequency for simple aldehydes, ketones, and carboxylic acids is about 1710 cm-1, the carbonyl stretching frequency for acid chlorides is about ________.

A) 1800 cm-1
B) 1660 cm-1
C) 2200 cm-1
D) 1735 cm-1
E) 1700 cm-1

Answer 1

A

Step-by-step explanation:

Acid chloride: --C=O-Cl. Stretch range ~1750-1820cm-1. I'd probably pick

(A) 1800 cm-1, as this value is in the middle (-ish) of that range.

Hence the correct answer is 1800 cm^-1