Identify the indicated sets of protons as unrelated, homotopic, enantiotopic, or diastereotopic:

a.

b.

c.

It is defined as the relation between the substituent and the structure with which they are stereochemically attached like homotopic, enantiotopic, and diastereotopic.

It is defined as the group in which 1 atom like hydrogen is replaced by the other atom when the rest are fixed and the molecule remains the same stereochemically and produces the same chemical shift.

It is defined as the group in which 1 atom like hydrogen is replaced by another atom when the rest are fixed and the molecule changes its stereo and from mirror images and produces the same chemical shift majority by if have chiral carbon produce different chemical shift like compound an as shown:

Compound a

It is defined as the group in which 1 atom like hydrogen is replaced by another atom when the rest are fixed and the molecule changes its stereo but is not a mirror image and produces the different chemical shift for every atom-like compound b and c as shown:

Compound b

Compound c