Chapter 23, Problem 23.70AP

Interpretation Introduction

Interpretation:

The way by which the compounds $A$, $B$, $C$ and $D$ can be distinguished is to be stated by the use of proton NMR.

Concept introduction:

NMR spectroscopy is a technique used to determine the unique structure of the compounds. It identifies the carbon-hydrogen bonding of an organic compound. A hydrogen atom is known as a proton in the NMR spectroscopy. The number of NMR signal in a compound is equal to the number of chemically non-equivalent protons present in that compound. The more the shielded proton less will be its chemical shift value and the corresponding signal will be produced at the right-hand side or lower frequency region.