Question

In cis isomer of a chair conformation, what configuration must Cl be in?

A) Cis isomers do not involve chair conformations
B) Cl can be in any configuration in cis isomers
C) Cl must be in a specific configuration in cis isomers
D) Chair conformations do not involve Cl.

Answer 1

In a cis isomer of a chair conformation, the chlorine atom must be in a specific configuration where it is on the same side of the cyclohexane ring as the other substituent it is cis to.

Step-by-step explanation:

In the context of chair conformations, the cis isomer refers to a specific arrangement where substituents on a cyclohexane ring are positioned on the same side. When discussing the placement of a Cl (chlorine) atom in a cis isomer of a chair conformation, Cl must be in a specific configuration, where it is placed on the same side of the cyclohexane ring as the other substituent it is cis to. This differs from a trans isomer, where substituents are located on opposite sides of the ring.

In the cis isomer of a chair conformation, the chlorine (Cl) must be in a specific configuration. The cis isomer refers to when two substituents are on the same side of a molecule. In the case of a chair conformation of a cyclohexane, the chlorine atoms would be adjacent to each other in the cis isomer.