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A a) Only 1 and 2 b) Only 2 and 3 C c) Only 3 and 1 D d) none

A a) Only 1 and 2 b) Only 2 and 3 C c) Only 3 and 1 D d) none

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Which are enantiomers?

### Question: Identify the pairs of the following molecules that are enantiomers: A) a) Only 1 and 2 B) b) Only 2 and 3 C) c) Only 3 and 1 D) d) none ### Diagrams: **Molecule I:** - Central carbon atom with four different groups: Br, H, CH₃ (methyl group), and another H. - Bromine (Br) is represented with a solid wedge, indicating it is coming out of the plane, and one hydrogen (H) with a dashed line, indicating it is going into the plane. **Molecule II:** - Central carbon atom with four different groups: Br, H, CH₃ (methyl group), and another H. - Bromine (Br) is represented with a dashed line, indicating it is going into the plane, and one hydrogen (H) with a solid wedge, indicating it is coming out of the plane. **Molecule III:** - Central carbon atom with four different groups: Br, H, CH₃ (methyl group), and another H. - Methyl group (CH₃) is represented with a solid wedge, indicating it is coming out of the plane, while bromine (Br) is with a dashed line, indicating it is going into the plane.
Transcribed Image Text:### Question: Identify the pairs of the following molecules that are enantiomers: A) a) Only 1 and 2 B) b) Only 2 and 3 C) c) Only 3 and 1 D) d) none ### Diagrams: **Molecule I:** - Central carbon atom with four different groups: Br, H, CH₃ (methyl group), and another H. - Bromine (Br) is represented with a solid wedge, indicating it is coming out of the plane, and one hydrogen (H) with a dashed line, indicating it is going into the plane. **Molecule II:** - Central carbon atom with four different groups: Br, H, CH₃ (methyl group), and another H. - Bromine (Br) is represented with a dashed line, indicating it is going into the plane, and one hydrogen (H) with a solid wedge, indicating it is coming out of the plane. **Molecule III:** - Central carbon atom with four different groups: Br, H, CH₃ (methyl group), and another H. - Methyl group (CH₃) is represented with a solid wedge, indicating it is coming out of the plane, while bromine (Br) is with a dashed line, indicating it is going into the plane.
Expert Solution
Step 1

Explanation-

In above molecule 1 ,2 ,3 none of the molecules are enantiomers of each other .

Enantiomers or optical isomers are chiral molecules which are non-superimposable mirror images of each other. 

1) RS configuration of molecule 1 and 2 are different and they have no mirror images, so they are diasteromers  of each other .

1) RS configuration of molecule 2 and 3 are same and they have superimposable mirror images of each other  so they are identical of each other .

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