Which two of the following salts are used for preparing iodized salt?
(i) `KIO_(3),` (ii) KI (iii) `I_(2)` (iv) HI

Options

A. (i) and (ii)
B. (i) and (iii)
C. (ii) and (iv)
D. (iii) and (iv)

Explanation

To solve the question of which two salts are used for preparing iodized salt, we can follow these steps:

### Step 1: Understand what iodized salt is
Iodized salt is table salt that has been fortified with iodine, which is an essential nutrient that helps prevent iodine deficiency.

**Hint:** Remember that iodized salt is specifically meant to provide iodine, which is crucial for health.

### Step 2: Identify the salts listed in the options
The salts given in the options are:
1. KIO₃ (Potassium iodate)
2. KI (Potassium iodide)
3. I₂ (Iodine)
4. HI (Hydroiodic acid)

**Hint:** Look for salts that can provide iodine when mixed with table salt.

### Step 3: Determine which salts are used to prepare iodized salt
- **KIO₃ (Potassium iodate)**: This salt can be used to provide iodine.
- **KI (Potassium iodide)**: This salt is commonly used to iodize table salt due to its stability and effectiveness in providing iodine.

**Hint:** Consider the stability and common usage of the salts in food products.

### Step 4: Analyze the other options
- **I₂ (Iodine)**: While iodine is necessary, it is not typically used directly in iodized salt due to its volatility.
- **HI (Hydroiodic acid)**: This is not used for iodizing salt as it is a strong acid and not a stable source of iodine for food.

**Hint:** Think about the practicality and safety of using each salt in food products.

### Step 5: Conclusion
The two salts that are used for preparing iodized salt are:
- KIO₃ (Potassium iodate)
- KI (Potassium iodide)

Thus, the correct answer is option (i) and (ii).

**Final Answer:** (i) KIO₃ and (ii) KI