The compound which has maximum number of chiral centres is

Options

A.
B.
C.
D.

Answer

To determine which compound has the maximum number of chiral centers, we will analyze the given compounds step by step.

### Step 1: Understand Chiral Centers
A chiral center (or chiral carbon) is a carbon atom that has four different groups attached to it. This creates non-superimposable mirror images, which is a characteristic of chiral molecules.

### Step 2: Analyze Each Compound
We will go through each compound and count the number of chiral centers.

#### Compound A
1. Count the carbon atoms: 5 carbons.
2. Identify groups attached to each carbon.
3. Determine which carbons are chiral:
- Carbon 2: Has different groups (H, Cl, CH3, and OH) → **Chiral**
- Carbon 4: Has different groups (H, OH, CH3, and another group) → **Chiral**
- Other carbons have identical groups → **Not chiral**
4. Total chiral centers in A: **2**

#### Compound B
1. Count the carbon atoms: 5 carbons.
2. Identify groups attached to each carbon.
3. Determine which carbons are chiral:
- Carbon 2: Has different groups (H, CH3, and two different groups) → **Chiral**
- Carbon 3: Has different groups (H, CH3, and two different groups) → **Chiral**
- Carbon 4: Has identical groups → **Not chiral**
4. Total chiral centers in B: **3**

#### Compound C
1. Count the carbon atoms: 6 carbons.
2. Identify groups attached to each carbon.
3. Determine which carbons are chiral:
- Carbon 2: Has different groups → **Chiral**
- Carbon 3: Has different groups → **Chiral**
- Carbon 4: Has different groups → **Chiral**
- Carbon 5: Has identical groups → **Not chiral**
4. Total chiral centers in C: **4**

#### Compound D
1. Count the carbon atoms: 6 carbons.
2. Identify groups attached to each carbon.
3. Determine which carbons are chiral:
- Carbon 2: Has identical groups → **Not chiral**
- Carbon 3: Has identical groups → **Not chiral**
- Carbon 4: Has different groups → **Chiral**
- Carbon 5: Has different groups → **Chiral**
4. Total chiral centers in D: **2**

### Step 3: Compare the Number of Chiral Centers
Now we compare the total number of chiral centers in each compound:
- Compound A: 2 chiral centers
- Compound B: 3 chiral centers
- Compound C: 4 chiral centers
- Compound D: 2 chiral centers

### Conclusion
The compound with the maximum number of chiral centers is **Compound C** with **4 chiral centers**.

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