Question

Find the number of stereoisomers for CH3 – CHOH – CH = CH – CH3.

(a) 1

(b) 2

(c) 3

(d) 4

I got this question in final exam.

I need to ask this question from Optical Isomerism in chapter Structure and Stereostructure of Molecules of Engineering Chemistry I

Answer 1

Correct answer is (d) 4

The best I can explain: The number of stereoisomers for CH3 – CHOH – CH = CH – CH3 is four. This is calculated by the formula 2^n+1.