Chemistry - STEREO ISOMERISM Question with Solution | TestHub

Ans. Positional isomers.

Sol. First structure (read from the Me end): CH₃-CH(Cl)-CH(OH)-CH₂-CH₃, i.e. 2-chloropentan-3-ol; second: CH₃-CH(OH)-CH(Cl)-CH₂-CH₃, i.e. 3-chloropentan-2-ol. In one, OH is on the carbon next to the methyl and Cl next to the ethyl; in the other it is the reverse. The connectivity differs : constitutional (positional) isomers.