Which of the following compounds is not present in iodized salt?

Options

A. sodium iodide
B. potassium iodide
C. common salt
D. lithium iodide

Explanation

To determine which compound is not present in iodized salt, let's analyze the options provided in the question step by step.

### Step 1: Understand what iodized salt is
Iodized salt is regular table salt (sodium chloride, NaCl) that has been fortified with iodine to prevent iodine deficiency, which can lead to health issues such as goiter.

### Step 2: Identify the components of iodized salt
Iodized salt typically contains:
- Sodium chloride (NaCl) as the base component.
- Iodine, which can be added in the form of:
- Sodium iodide (NaI)
- Potassium iodide (KI)

### Step 3: Analyze the options
1. **Sodium iodide (NaI)** - This is a compound that can be added to salt to provide iodine.
2. **Potassium iodide (KI)** - This is another compound that can be added to salt to provide iodine.
3. **Common salt (NaCl)** - This is the main component of iodized salt.
4. **Lithium iodide (LiI)** - This compound is not typically added to iodized salt.

### Step 4: Conclusion
Based on the analysis, the compound that is not present in iodized salt is **lithium iodide (LiI)**.

### Final Answer:
Lithium iodide (LiI) is not present in iodized salt.

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