7.(a) Draw and label (i) the enantiomer and (ii) a pair of diasteromers of the following compound. он (b) Will a 50:50 mix of the enantiomers that you drew for 7al be optically active (rotate plane polarized light). Explain the reason for your answer

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**Question 7:**

**(a)** Draw and label (i) the enantiomer and (ii) a pair of diastereomers of the following compound.

*The structure shown is a cyclohexane ring with an OH group and an NH₂ group attached. The OH group is represented with a solid wedge, indicating it is on the front face of the ring, while the NH₂ group is shown with a dashed wedge, indicating it is on the back face of the ring.*

**(b)** Will a 50:50 mix of the enantiomers that you drew for 7a(i) be optically active (rotate plane polarized light)? Explain the reason for your answer.

**(b)** Will a 50:50 mix of the two diastereomers you drew for 7a(ii) be optically active (rotate plane polarized light)? Explain the reason for your answer. 

**Explanation:**

- **Enantiomers** are mirror images of each other that cannot be superimposed. A 50:50 mix of enantiomers is called a racemic mixture and it is not optically active because the optical rotations of the enantiomers cancel each other out.

- **Diastereomers** are not mirror images and usually do not have identical properties. A 50:50 mix of diastereomers generally does not result in optical inactivity, and such a mixture may still be optically active depending on the specific structure and arrangement of the molecules.
Transcribed Image Text:**Question 7:** **(a)** Draw and label (i) the enantiomer and (ii) a pair of diastereomers of the following compound. *The structure shown is a cyclohexane ring with an OH group and an NH₂ group attached. The OH group is represented with a solid wedge, indicating it is on the front face of the ring, while the NH₂ group is shown with a dashed wedge, indicating it is on the back face of the ring.* **(b)** Will a 50:50 mix of the enantiomers that you drew for 7a(i) be optically active (rotate plane polarized light)? Explain the reason for your answer. **(b)** Will a 50:50 mix of the two diastereomers you drew for 7a(ii) be optically active (rotate plane polarized light)? Explain the reason for your answer. **Explanation:** - **Enantiomers** are mirror images of each other that cannot be superimposed. A 50:50 mix of enantiomers is called a racemic mixture and it is not optically active because the optical rotations of the enantiomers cancel each other out. - **Diastereomers** are not mirror images and usually do not have identical properties. A 50:50 mix of diastereomers generally does not result in optical inactivity, and such a mixture may still be optically active depending on the specific structure and arrangement of the molecules.
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