Which will undergo reaction with ammonical `AgNO_(3)` :

Options

A. `CH_(3)-CH=CH-CH_(3)`
B. `CH_(3)-CH=CH-C-=CH`
C. `CH_(3)-CH_(2)-CH=CH-CH_(2)-CH_(3)`
D. `CH_(2)=CH-CH_(2)-CH_(3)`

Answer

To determine which compound will undergo a reaction with ammonical AgNO₃, we need to identify the presence of acidic hydrogen, particularly those attached to alkynes (C≡C). Alkynes contain a carbon-carbon triple bond, and the hydrogen atoms attached to the carbon in the triple bond are acidic in nature.

### Step-by-Step Solution:

1. **Identify the Compounds**:
- Look at the given options to identify which of them contains an alkyne (C≡C) structure.

2. **Recognize the Nature of Alkynes**:
- Alkynes have acidic hydrogens due to the sp hybridization of the carbon atoms involved in the triple bond. This acidity allows them to react with ammonical AgNO₃.

3. **Analyze Each Option**:
- Check each compound to see if it has a triple bond (alkyne).
- For example, if we have:
- Option 1: Alkene (C=C) - does not react.
- Option 2: Alkyne (C≡C) - reacts.
- Option 3: Alkane (C-C) - does not react.
- Option 4: No triple bond - does not react.

4. **Determine the Reaction**:
- For the compound that is an alkyne, when it reacts with ammonical AgNO₃, the acidic hydrogen is replaced by a silver ion (Ag⁺).
- The general reaction can be represented as:
\[ \text{R-C≡C-H} + \text{AgNO}_3 + \text{NH}_4\text{OH} \rightarrow \text{R-C≡C-Ag} + \text{NH}_4\text{NO}_3 + \text{H}_2\text{O} \]
- Here, R represents the rest of the hydrocarbon chain.

5. **Conclusion**:
- The compound that contains the alkyne will undergo the reaction with ammonical AgNO₃. Therefore, the correct option is the one that contains the triple bond.

### Final Answer:
- The compound that will undergo a reaction with ammonical AgNO₃ is the one that contains an alkyne (C≡C).