Question

How many isomers are possible for the compound 4 - bromo 7 - chlorine - hydroxy 2,6 dimethyl - heptanoic acid

Answer 1

If only stereoisomers are supposed, then the answer is:

Since there are 3 chiral centers in this molecule and the molecule is unsymmetric, the number of stereoisomers would be 23=8

But if isomers of all types of isomerism are supposed for this question, then the question becomes almost impossible to answer since the total number of isomers for this molecule is enormous.