Which of the following hladies is capable of exhibitin enantiomerism?

Options

A. Ethyl chloride
B. Isopropyl bromide
C. sec-Butyl iodide
D. tert-Butyl chloride

Explanation

To determine which of the given halides is capable of exhibiting enantiomerism, we need to follow a systematic approach based on the criteria for enantiomerism.

### Step-by-Step Solution:

1. **Understand Enantiomerism**:
- Enantiomerism occurs when a compound has a chiral center, which is a carbon atom bonded to four different groups. Additionally, the compound must lack a plane of symmetry.

2. **Analyze Each Compound**:
- We will examine each of the provided halides to check for the presence of a chiral carbon and the absence of a plane of symmetry.

3. **Compound A: Ethyl Chloride (C2H5Cl)**:
- Structure: CH3-CH2-Cl
- Analysis: The carbon atoms in ethyl chloride do not have four different groups attached. Therefore, there is no chiral carbon present.
- Conclusion: Cannot exhibit enantiomerism.

4. **Compound B: Isopropyl Bromide (C3H7Br)**:
- Structure: CH3-CH(Br)-CH3
- Analysis: The central carbon (attached to bromine) is bonded to two identical methyl groups and one bromine. Thus, it does not have four different groups.
- Conclusion: Cannot exhibit enantiomerism.

5. **Compound C: Secondary Butyl Iodide (C4H9I)**:
- Structure: CH3-CH(I)-CH2-CH3
- Analysis: The carbon bonded to iodine has four different groups: an iodine atom, a hydrogen atom, a methyl group, and an ethyl group. This carbon is a chiral center.
- Conclusion: Can exhibit enantiomerism.

6. **Compound D: Tertiary Butyl Chloride (C4H9Cl)**:
- Structure: (CH3)3C-Cl
- Analysis: The central carbon is bonded to three identical methyl groups and one chlorine atom. Therefore, it does not have four different groups.
- Conclusion: Cannot exhibit enantiomerism.

7. **Final Conclusion**:
- The only compound capable of exhibiting enantiomerism is **Secondary Butyl Iodide (Compound C)**.

### Answer:
**The compound capable of exhibiting enantiomerism is Secondary Butyl Iodide (C).**

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