Which of the following reagents can give Urotropine, which is used as an antiseptic for urinary track infection ?

Options

A. Ethanal and ethylamine
B. Methanal and `H_(2)SO_(4)`
C. Methanal and ammonia
D. Methanal and `50% NaOH`

Answer

To determine which of the given reagents can produce Urotropine, we need to analyze each option and understand the structure of Urotropine.

### Step-by-Step Solution:

1. **Understanding Urotropine**:
- Urotropine, also known as hexamethylenetetramine, has a chemical structure that includes four nitrogen atoms. The general formula is (CH2)6N4, indicating that it is formed from formaldehyde and ammonia.

2. **Analyzing the Options**:
- **Option A: Ethanol and Ethylamine**:
- Ethanol (C2H5OH) does not contain nitrogen, and ethylamine (C2H5NH2) alone cannot produce Urotropine since it lacks the necessary formaldehyde component.
- **Option B: Methanol and H2SO4**:
- Methanol (CH3OH) does not react with sulfuric acid to produce a nitrogen-containing compound. This option does not provide the necessary nitrogen.
- **Option C: Methanol and Ammonia**:
- Methanol can react with ammonia (NH3) to form Urotropine. The reaction involves the condensation of formaldehyde (from methanol) with ammonia, yielding Urotropine.
- **Option D: Methanol and 50% NaOH**:
- Sodium hydroxide (NaOH) does not provide nitrogen and cannot lead to the formation of Urotropine.

3. **Conclusion**:
- The only option that provides both the necessary carbon (from methanol) and nitrogen (from ammonia) to form Urotropine is **Option C: Methanol and Ammonia**.

### Final Answer:
- The correct option is **C: Methanol and Ammonia**.