I had to answer true or false for the following five questions. If they were false, I had to explain why. 1. In some cases, constitutional isomers are chiral. TRUE 2. Every chiral compound has a diastereomer. TRUE 3. Some diastereomers have mirror-image relationship. FALSE Diastereomers are not mirror images of each other. 4. If a structure has no plane of symmetry it is chiral. TRUE 5. If a compound has a diastereomer it must be chiral. FALSE Compounds without a chiral center (like an sp2 hybridized molecule) can have a diastereomer. So I need to know if my answers are correct. If not, why are my answers (if any) incorrect? Thanks.