In 3-chloro cyclohexanol, the primary prefix is:

Options

A. 3-Chloro
B. Cycle
C. an `(e)`
D. `-ol`

Explanation

To determine the primary prefix in the compound 3-chloro cyclohexanol, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Compound Name**: The compound is named "3-chloro cyclohexanol".

2. **Break Down the Name**: The name can be divided into parts:
- "3-chloro" indicates the presence of a chlorine atom at the third position of the carbon chain.
- "cyclo" indicates that the compound is a cyclic structure.
- "hex" refers to a six-carbon chain.
- "anol" indicates that it is an alcohol (presence of -OH group).

3. **Determine the Root Word**: The root word here is "hex", which signifies that there are six carbon atoms in the main structure.

4. **Identify the Primary Prefix**: The primary prefix is the part of the name that describes the structure of the compound. In this case, "cyclo" is the primary prefix because it indicates that the compound is a cyclic structure.

5. **Conclusion**: Therefore, the primary prefix in 3-chloro cyclohexanol is "cyclo".

### Final Answer:
The primary prefix in 3-chloro cyclohexanol is "cyclo".

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