Classify the following compounds as cis or trans structures. Write NA if the molecule cannot be classified as a sis or a trans structure.

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Classify the following compounds as cis or trans structures. Write NA if the molecule cannot be classified as a sis or a trans structure.

The image contains structural representations of six organic compounds labeled I through VI. Here's a detailed description of each structure:

**I.**
- A linear aliphatic chain with four carbon atoms.
- The first and last carbon atoms each have a single hydrogen atom attached.
- The two middle carbon atoms each have one hydrogen and one chlorine atom attached.

**II.**
- A linear aliphatic chain with three carbon atoms double-bonded in a zigzag manner.
- The first carbon has two hydrogen atoms attached.
- The second carbon has one chlorine and one hydrogen atom attached.
- The third carbon also has a chlorine atom attached.

**III.**
- A cyclopentane ring with five carbon atoms.
- Two adjacent carbon atoms in the ring bear chlorine atoms.
- The chlorine atoms are attached in such a way to indicate stereochemistry, with one chlorinated carbon atom having a line wedge to show the atom is coming out of the plane.

**IV.**
- Another cyclopentane structure with five carbon atoms.
- A single carbon atom in the ring is attached to a chlorine atom, shown by a line wedge indicating stereochemistry (above the plane of the ring).

**V.**
- A cyclopentene ring structure with introduced unsaturation, shown as a double bond between two carbon atoms.
- One of the doubly bonded carbon atoms has an attached chlorine atom indicated by a single vertical line, representing the atom as lying in the plane of the ring.

**VI.**
- A linear chain with four carbon atoms.
- There is a double bond between the third and fourth carbon atoms.
- The third carbon atom is bonded to one chlorine atom.
- Both terminal carbon atoms have attached hydrogen atoms.

These chemical structures depict varying cyclic and acyclic hydrocarbons, featuring different bonding and substituent patterns such as chlorination and unsaturation (double bonds).
Transcribed Image Text:The image contains structural representations of six organic compounds labeled I through VI. Here's a detailed description of each structure: **I.** - A linear aliphatic chain with four carbon atoms. - The first and last carbon atoms each have a single hydrogen atom attached. - The two middle carbon atoms each have one hydrogen and one chlorine atom attached. **II.** - A linear aliphatic chain with three carbon atoms double-bonded in a zigzag manner. - The first carbon has two hydrogen atoms attached. - The second carbon has one chlorine and one hydrogen atom attached. - The third carbon also has a chlorine atom attached. **III.** - A cyclopentane ring with five carbon atoms. - Two adjacent carbon atoms in the ring bear chlorine atoms. - The chlorine atoms are attached in such a way to indicate stereochemistry, with one chlorinated carbon atom having a line wedge to show the atom is coming out of the plane. **IV.** - Another cyclopentane structure with five carbon atoms. - A single carbon atom in the ring is attached to a chlorine atom, shown by a line wedge indicating stereochemistry (above the plane of the ring). **V.** - A cyclopentene ring structure with introduced unsaturation, shown as a double bond between two carbon atoms. - One of the doubly bonded carbon atoms has an attached chlorine atom indicated by a single vertical line, representing the atom as lying in the plane of the ring. **VI.** - A linear chain with four carbon atoms. - There is a double bond between the third and fourth carbon atoms. - The third carbon atom is bonded to one chlorine atom. - Both terminal carbon atoms have attached hydrogen atoms. These chemical structures depict varying cyclic and acyclic hydrocarbons, featuring different bonding and substituent patterns such as chlorination and unsaturation (double bonds).
Expert Solution
Step 1

Assign priority to the groups attached to each doubly bonded carbon atom according to the CIP (Cahn-Ingold-Prelog)rule. 

if both high priority groups are on same side then the configuration will be cis

if both high priority groups are away from each other then the configuration will be trans

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