The correct order of boiling points for primary `(1^(@))`, secondary `(2^(@))` and tertiary alcohol `(3^(@))` is:

Options

A. `1^(@) gt 2^(@) gt 3^(@)`
B. `3^(@) gt 2^(@) gt 1^(@)`
C. `2^(@) gt 1^(@) gt 3^(@)`
D. `2^(@) gt 3^(@) gt 1^(@)`

Explanation

To determine the correct order of boiling points for primary (1°), secondary (2°), and tertiary (3°) alcohols, we can analyze the impact of molecular structure on boiling points.

### Step-by-Step Solution:

1. **Understand the Structure of Alcohols**:
- Primary alcohols have the hydroxyl (-OH) group attached to a carbon that is connected to one other carbon.
- Secondary alcohols have the -OH group on a carbon that is connected to two other carbons.
- Tertiary alcohols have the -OH group on a carbon that is connected to three other carbons.

2. **Consider the Effects of Branching**:
- The boiling point of alcohols is influenced by hydrogen bonding and molecular weight. However, branching in carbon chains affects boiling points significantly.
- More branching leads to a more compact structure, which reduces the surface area available for intermolecular forces.

3. **Analyze the Boiling Points**:
- **Tertiary Alcohols (3°)**: Due to the high degree of branching, tertiary alcohols have the lowest boiling points. The bulky structure reduces the ability to form hydrogen bonds effectively.
- **Secondary Alcohols (2°)**: These have moderate branching and thus have higher boiling points than tertiary alcohols but lower than primary alcohols.
- **Primary Alcohols (1°)**: With the least branching, primary alcohols can form stronger hydrogen bonds and have the highest boiling points among the three types.

4. **Establish the Order**:
- Based on the analysis, the correct order of boiling points from highest to lowest is:
- Primary alcohols (1°) > Secondary alcohols (2°) > Tertiary alcohols (3°).

### Final Answer:
The correct order of boiling points for primary, secondary, and tertiary alcohols is:
**1° > 2° > 3°**