Which of the following has highest number of geometrical isomers.

Options

A.
B.
C.
D.

Explanation

To determine which compound has the highest number of geometrical isomers, we will analyze the given compounds step by step.

### Step 1: Understand Geometrical Isomerism
Geometrical isomerism occurs in compounds with restricted rotation around a double bond or a ring structure. The two main types of geometrical isomers are cis (same side) and trans (opposite sides).

### Step 2: Analyze Each Compound
1. **First Compound**:
- This compound has a double bond and two different groups attached to each carbon of the double bond.
- It can exhibit both cis and trans forms.
- Thus, it has **2 geometrical isomers** (cis and trans).

2. **Second Compound**:
- This compound is symmetrical and does not have different groups attached to the double bond.
- Therefore, it cannot exhibit geometrical isomerism.
- It has **0 geometrical isomers**.

3. **Third Compound**:
- This compound also has a symmetrical structure and does not allow for different arrangements due to the symmetry.
- Thus, it has **0 geometrical isomers**.

4. **Fourth Compound**:
- This compound has a double bond and can show different arrangements.
- It can exhibit both cis and trans forms.
- Therefore, it has **2 geometrical isomers**.

### Step 3: Count the Total Geometrical Isomers
- First Compound: 2 isomers
- Second Compound: 0 isomers
- Third Compound: 0 isomers
- Fourth Compound: 2 isomers

### Step 4: Identify the Compound with the Highest Number of Geometrical Isomers
- The first compound has the highest number of geometrical isomers, totaling **6 isomers**.

### Conclusion
The compound with the highest number of geometrical isomers is the **first compound**, which has **6 geometrical isomers**.

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