Number of phenolic group present in codeine is

Options

A. 0
B. 2
C. 1
D. 4

Answer

To determine the number of phenolic groups present in codeine, we need to analyze its chemical structure step by step.

### Step-by-Step Solution:

1. **Understand the Definition of a Phenolic Group**:
A phenolic group is characterized by a hydroxyl group (-OH) directly attached to an aromatic benzene ring.

2. **Draw the Structure of Codeine**:
Codeine has a complex structure that includes a benzene ring, a methoxy group (-OCH3), and other functional groups.

3. **Identify the Aromatic Rings in Codeine**:
In the structure of codeine, there is a benzene ring present. However, we need to check if there is a hydroxyl group attached to it.

4. **Locate the Hydroxyl Group**:
In the structure of codeine, the hydroxyl group (-OH) is present, but it is not directly attached to the benzene ring. Instead, it is part of a conjugated system with a double bond.

5. **Determine the Presence of Phenolic Groups**:
Since the hydroxyl group is not directly attached to the benzene ring, it does not qualify as a phenolic group. Therefore, we conclude that there are no phenolic groups in codeine.

6. **Final Answer**:
The number of phenolic groups present in codeine is **0**.