Question

Which of the following compounds will show stereoisomerism?

• A. 1-phenylethanamine
• B. phenylchloroethanoate
• C. 3-chloro-3-ethynylpenta-1,4-diyne
• D. 3-methylbutanoic acid

Answer 1

Answer: (A)

1-phenylethanamine

1-phenylethanamine is an optically active compound. So, it will show optical isomerism.
phenylchloroethanoate, 3-chloro-3-ethynylpenta-1,4-diyne and 3-methylbutanoic acid have no chiral center or geometrical center. So, they will not show any geometrical or optical isomerism.