Which of the following is the correct definition for a pair of enantiomers? A pa

Question

Which of the following is the correct definition for a pair of enantiomers? A pair of stereoisomers that are not mirror images of each other. A pair of stereoisomers that have a plane of symmetry. A pair stereoisomers that are superimposable mirror images of each other. A pair of stereoisomers that are not superimposable mirror images of each other. Determine the electron geometry around the indicated atom in each species. I = Tetrahedral; II = trigonal planar; III = linear; IV = tetrahedral I = Linear; II = tetrahedral; III = trigonal planar; IV = tetrahedral I = Trigonal planar; II = linear; III = tetrahedral; IV = trigonal planar I = Linear; II = tetrahedral; III = trigonal planar; IV = linear Rank the following groups in order of decreasing priority, according to the Cahn- Prelog system. CH_3 CH_2OH COOH CHO III > II > IV > I III > I > II > IV III > IV > II > I I > II > IV > III

Explanation / Answer

Q51.

enantiomers are mirror images of isomers... so they are, by definition, constitutional isomers, they have the SAME atoms, and the SAME orgnaic group,s they only change their geometrical arrangement.

so

a)

false, since they ARE mirror images

b)

False, symmetry must not exist

c)

false, they are NOT usperimposable, if they are, then they are the SAME molecule

d)

TRUE! they are not superimposable + mirror images + no plane of symmetry

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