The type of isomerism found in urea molecule is

Options

A. Chain
B. Position isomers
C. Tautomerism
D. Geometrical

Answer

To determine the type of isomerism found in the urea molecule, we will analyze its structure and the possible types of isomerism.

### Step-by-Step Solution:

1. **Identify the Structure of Urea**:
Urea has the molecular formula NH₂CONH₂. This indicates that it contains two amine groups (NH₂) and a carbonyl group (C=O).

2. **Consider the Types of Isomerism**:
There are several types of isomerism, including:
- **Chain Isomerism**: Different arrangements of the carbon skeleton.
- **Position Isomerism**: Same carbon skeleton but different positions of functional groups.
- **Tautomerism**: A special type of isomerism where isomers can interconvert, typically involving the relocation of a hydrogen atom and a double bond.
- **Geometrical Isomerism**: Occurs due to different spatial arrangements around a double bond.

3. **Analyze Urea for Isomerism**:
- **Chain Isomerism**: Not applicable here since urea has a specific structure with no alternative carbon chain arrangements.
- **Position Isomerism**: Also not applicable as the functional groups in urea are fixed in their positions.
- **Geometrical Isomerism**: Not applicable since urea does not have double bonds that allow for cis/trans configurations.
- **Tautomerism**: Urea can undergo tautomerism. The hydrogen from one of the NH groups can shift to the oxygen, leading to a different structure (isomer) where the double bond between carbon and nitrogen changes.

4. **Conclusion**:
Based on the analysis, urea exhibits **tautomerism** as its primary type of isomerism.

### Final Answer:
The type of isomerism found in the urea molecule is **tautomerism**.

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