`CH_3-overset(O)overset(||)C-OHoverset(NH_3)rarr(A)overset(Al_2O_3)rarr(B)overset(H_3O^+)rarr(D),D` is

Options

A. `CH_3NH_2`
B. `CH_3COOH`
C. `CH_3CH_2COOH`
D. `CH_3CH_2NH_2`

Answer

To solve the given question step by step, we will analyze the reactions involved starting from the initial compound and moving through the transformations to identify the final product D.

### Step 1: Identify the starting compound
The starting compound is acetic acid, which can be represented as \( CH_3COOH \).

### Step 2: Reaction with Ammonia
When acetic acid reacts with ammonia (\( NH_3 \)), it forms ammonium acetate. The reaction can be represented as follows:
\[ CH_3COOH + NH_3 \rightarrow CH_3COONH_4^+ \]
This compound is represented as A.

### Step 3: Reaction with \( Al_2O_3 \)
Next, the ammonium acetate (A) is treated with \( Al_2O_3 \), which acts as a dehydrating agent. The removal of water from ammonium acetate leads to the formation of an amide:
\[ CH_3COONH_4^+ \xrightarrow{Al_2O_3} CH_3CONH_2 + H_2O \]
This compound is represented as B (which is acetamide).

### Step 4: Hydrolysis of Amide
The next step involves the hydrolysis of the amide (B). Hydrolysis of acetamide in the presence of water leads to the regeneration of acetic acid and ammonia:
\[ CH_3CONH_2 + H_2O \rightarrow CH_3COOH + NH_3 \]
During this process, ammonia gas is released, which escapes from the reaction mixture.

### Step 5: Identify the final product D
The final product D after hydrolysis is acetic acid, represented as:
\[ D = CH_3COOH \]

### Conclusion
Thus, the final product D is acetic acid, which can be represented as \( CH_3COOH \).

### Answer
The correct answer is option B, which corresponds to acetic acid \( CH_3COOH \).

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