Question

Determine the number of different kinds of protons in each compounds

1. 1-bromopropane (b) 2-bromopropane
2. 2,2-dimethylpropane (d) 2,2-dimethylpentane
3. (e) 1-chloro-4-methylbenzene (f) 1-chloro-2-methylbenzene

Short answer

In 1-bromopropane the three types of different hydrogens are present in proton NMR spectra.

They are marked as a, b, and c. So they will provide different proton NMR values.

(a)

Step-by-step solution

1-bromopropane

In 1-bromopropane the three types of different hydrogens are present in proton NMR spectra.

They are marked as a, b, and c. So they will provide different proton NMR values.

(a)

2-bromopropane

In 2-bromopropane the two types of different hydrogens are present in proton NMR spectra.

They are marked as a, and b. So they will provide different proton NMR values.

(b)

2,2-dimethylpropane

In 2,2-dimethylpropane the one type of hydrogen is present in proton NMR spectra.

They are marked as a. So they will provide same proton NMR value.

(c)

2,2-dimethylpentane

In 2,2-dimethylpentane the four types of different hydrogens are present in proton NMR spectra.

They are marked as a, b, c and d. So they will provide different proton NMR values.

(d)

1-chloro-4-methylbenzene.

In 1-chloro-4-methylbenzene the three types of different hydrogens are present in proton NMR spectra.

They are marked as a, b, and c. So they will provide different proton NMR values.

(e)

1-chloro-2-methylbenzene

In 1-chloro-2-methylbenzene the four types of different hydrogens are present in proton NMR spectra.

They are marked as a, b, c and d. So they will provide different proton NMR values.

(f)