Chapter 20, Problem 20.40SP

(a)

Interpretation Introduction

Interpretation:

The structure of the compound on the basis of NMR spectrum having molecular formula ${\text{C}}_9{\text{H}}_{10}{\text{O}}_2$ is to be stated.

Concept introduction:

Nuclear magnetic resonance is an analytical technique used to evaluate the chemical structure, molecular formula, arrangement of atoms in the structures and purity of the compound. It is one of the most useful techniques. It works on the principle of spins of atomic nuclei. Hydrogen atom must present in the compound for taking proton NMR spectrum because splitting of peaks occur according to the position of hydrogen atoms.

(b)

Interpretation Introduction

Interpretation:

The structure of the compound on the basis of NMR spectrum having molecular formula ${\text{C}}_4{\text{H}}_6{\text{O}}_2$ is to be shown.

Concept introduction:

Nuclear magnetic resonance is an analytical technique used to evaluate the chemical structure, molecular formula, arrangement of atoms in the structures and purity of the compound. It is one of the most useful techniques. It works on the principle of spins of atomic nuclei. Hydrogen atom must present in the compound for taking proton NMR spectrum because splitting of peaks occur according to the position of hydrogen atoms.

(c)

Interpretation Introduction

Interpretation:

The structure of the compound on the basis of NMR spectrum having molecular formula ${\text{C}}_6{\text{H}}_{10}{\text{O}}_2$ is to be shown.

Concept introduction:

Nuclear magnetic resonance is an analytical technique used to evaluate the chemical structure, molecular formula, arrangement of atoms in the structures and purity of the compound. It is one of the most useful techniques. It works on the principle of spins of atomic nuclei. Hydrogen atom must present in the compound for taking proton NMR spectrum because splitting of peaks occur according to the position of hydrogen atoms.