Urea was synthesised for the first time by

Options

A. Friedrich Wohler
B. Berzelius
C. Kolbe
D. Berthelot

Answer

### Step-by-Step Solution:

1. **Understanding the Context**: Urea is an organic compound that was historically significant because it was the first organic compound synthesized in a laboratory setting. Before this, it was widely believed that organic compounds could only be derived from living organisms.

2. **Identifying the Scientist**: The first synthesis of urea was accomplished by Frederick Wohler in the year 1828. This was a groundbreaking moment in chemistry, as it challenged the vitalism theory, which stated that organic compounds could only be produced by living organisms.

3. **The Chemical Reaction**: Wohler synthesized urea by heating ammonium cyanate (NH4CNO). The reaction can be summarized as follows:
- Starting compound: Ammonium cyanate (NH4CNO)
- Process: Heating
- Product: Urea (NH2CONH2)

4. **Chemical Structure of Urea**: Urea has the chemical formula NH2CONH2, which consists of two amine groups (NH2) and a carbonyl group (C=O).

5. **Conclusion**: Therefore, the answer to the question "Urea was synthesized for the first time by" is Frederick Wohler.

### Final Answer:
Urea was synthesized for the first time by Frederick Wohler in 1828.

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