The maximum number of acidic hydrogen in a molecule of `C_(6)H_(10)` is

Answer

To determine the maximum number of acidic hydrogens in a molecule of \( C_6H_{10} \), we can follow these steps:

### Step 1: Calculate the Degree of Unsaturation
The degree of unsaturation (DU) can be calculated using the formula:

\[ \text{DU} = \frac{(2C + 2 + N - H - X)}{2} \]

Where:
- \( C \) = number of carbons
- \( H \) = number of hydrogens
- \( N \) = number of nitrogens (0 in this case)
- \( X \) = number of halogens (0 in this case)

For \( C_6H_{10} \):
- \( C = 6 \)
- \( H = 10 \)
- \( N = 0 \)
- \( X = 0 \)

Substituting the values:

\[ \text{DU} = \frac{(2 \times 6 + 2 + 0 - 10 - 0)}{2} = \frac{(12 + 2 - 10)}{2} = \frac{4}{2} = 2 \]

### Step 2: Interpret the Degree of Unsaturation
A degree of unsaturation of 2 indicates that the molecule can have:
- 1 triple bond (alkyne)
- 2 double bonds (alkenes)
- 1 ring and 1 double bond

### Step 3: Identify Structures and Acidic Hydrogens
1. **Alkyne Structure**: If we consider a structure with a triple bond (alkyne), the acidic hydrogen is typically found on the carbon adjacent to the triple bond. In a linear alkyne, there is one acidic hydrogen:
- Example: \( HC \equiv C - C - C - C - C \) (where the terminal hydrogen is acidic).

2. **Alkene Structures**: If we consider structures with double bonds (alkenes), they do not have acidic hydrogens like alkynes. The hydrogen atoms attached to sp² hybridized carbons (in alkenes) are less acidic.

### Step 4: Conclusion on Maximum Acidic Hydrogens
From the analysis:
- In the alkyne structure, there is **1 acidic hydrogen**.
- In any alkene structures, there are no significant acidic hydrogens.

Thus, the maximum number of acidic hydrogens in a molecule of \( C_6H_{10} \) is **1**.

### Final Answer
The maximum number of acidic hydrogens in a molecule of \( C_6H_{10} \) is **1**.

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