Which of the following halogen exchange reaction will occur in acetone ?

Options

A. `R - I + NaCl to `
B. `R-F + KCl to `
C. `R-Cl + NaI to `
D. `R -F + AgBr to `

Answer

To determine which halogen exchange reaction will occur in acetone, we can follow these steps:

### Step 1: Understand the Finkelstein Reaction
The Finkelstein reaction is a type of halogen exchange reaction where an alkyl halide (RX) reacts with sodium iodide (NaI) in the presence of acetone. The halogen (X) can be chlorine or bromine, and the product formed is a new alkyl halide (Ri) and sodium halide (NaX).

**Hint:** Remember that the Finkelstein reaction specifically involves the exchange of halogens, particularly with sodium iodide in acetone.

### Step 2: Identify the Reactants
In the Finkelstein reaction, the reactants are:
- An alkyl halide (RX), where X is a halogen (Cl or Br).
- Sodium iodide (NaI).

**Hint:** Look for the presence of sodium iodide and an alkyl halide in the options given.

### Step 3: Analyze the Options
Given the options, we need to identify which one contains an alkyl halide (with Cl or Br) and sodium iodide (NaI). The reaction will occur if these two components are present.

**Hint:** Check each option carefully to see if it includes both an alkyl halide and sodium iodide.

### Step 4: Determine the Correct Option
After analyzing the options, we find that the correct option is the one that includes an alkyl halide (like RCl) and sodium iodide (NaI). This will allow the halogen exchange to occur.

**Hint:** Focus on the combination of RCl and NaI as it fits the criteria for the Finkelstein reaction.

### Conclusion
The correct answer is the option that includes RCl and NaI, indicating that the halogen exchange reaction will occur in acetone.

**Final Answer:** Option C (RCl, NaI) is the correct choice.