Which compound will react with an aqueous solution of `Ag(NH_3)_2^(+)OH^-`

Options

A. `CH_2=CH_2`
B. `CH_3-CH_2`
C. `CH_3CH_2C-=CH`
D. `CH_3-C-=C-CH_3`

Explanation

To determine which compound will react with an aqueous solution of `Ag(NH_3)_2^(+)OH^-`, we need to analyze the nature of the reagent and the types of hydrocarbons that can react with it.

### Step-by-Step Solution:

1. **Identify the Reagent**: The reagent `Ag(NH_3)_2^(+)OH^-` is known as Tollens' reagent. It is primarily used to test for aldehydes and terminal alkynes.

2. **Understand the Reactivity**:
- **Aldehydes**: Tollens' reagent reacts with aldehydes, producing a silver mirror effect.
- **Ketones**: Tollens' reagent does not react with ketones.
- **Terminal Alkynes**: Terminal alkynes can react with Tollens' reagent to form a white precipitate of silver.
- **Non-terminal Alkynes**: Non-terminal alkynes do not react with Tollens' reagent.

3. **Evaluate the Given Options**:
- **Option 1: Ethyne (Alkyne)**: Ethyne is a terminal alkyne and will react with Tollens' reagent.
- **Option 2: Alkane**: Alkanes do not react with Tollens' reagent.
- **Option 3: Terminal Alkyne**: This will react with Tollens' reagent and produce a white precipitate.
- **Option 4: Non-terminal Alkyne**: Non-terminal alkynes do not react with Tollens' reagent.

4. **Conclusion**: The compound that will react with `Ag(NH_3)_2^(+)OH^-` is the terminal alkyne (Option 3), as it is capable of undergoing a reaction with Tollens' reagent.

### Final Answer:
The compound that will react with an aqueous solution of `Ag(NH_3)_2^(+)OH^-` is the terminal alkyne (Option 3).