91Ó°ÊÓ

The proton which is having a different environment and all protons give different peaks is the non-equivalent proton whereas if the proton shares the same environment and all protons gave the same singles or peaks are the equivalent protons.

As you see in the compound both the methyl substituents share same environment so their 6 H produce the same 1 signal

And the 2 carbon 4 hydrogen produce 1 signal similarly, 3 carbon 4 hydrogen produce 1 signal last 4 carbon produce 1 signal.

Hence, a total 4 equivalent protons are present as shown:

As u see in the compound methyl group with O atom form 1 signal

Then methylene from 1 signal that 1 equivalent proton

Again the 2^nd methylene from 1 signal that 1 equivalent proton

The methyl with the methylene form1equivalent proton

Hence, a total 4 equivalent protons are present as shown:

Compound A

As you, u seen in the compound the head which is marked by 1 is having the same environment so 1 signal and 1 equivalent proton and all the side carbon marked by 2 produce 1 signal so,

A total 2 equivalent protons are present as shown:

Compound A

As you see on the compound the proton represented by1 produce 1 signal and the proton around the alkene both share a different environment represented by 2 and 3 produce a different signal and then carbon represented by 4 produce signal and then 2 carbon represent by 5 having the same environment produce the same signal then carbon 6 produce 1 more different signal so,

A total 6 equivalent protons are present as shown:

Compound D

As you see in the compound the 3 protons are surrounded by alkene represented by 1, 2, 3 having different environments produce different signals then the methylene group produces a signal represented by 4 then the methyl group represented by 5.

So, a Total of 5 equivalent protons is present as shown:

Compound E