When a mixture of sulfur dioxide and chlorine are exposed to light the product formed is:

Options

A. (A) phosgene
B. (B) thionyl chloride
C. (C) sulfuryl chloride
D. (D) sulfur dichloride

Answer

To solve the question regarding the product formed when a mixture of sulfur dioxide (SO₂) and chlorine (Cl₂) is exposed to light, we can follow these steps:

### Step 1: Identify the Reactants
The reactants in this reaction are sulfur dioxide (SO₂) and chlorine (Cl₂).

### Step 2: Understand the Reaction Conditions
The reaction occurs when the mixture of SO₂ and Cl₂ is exposed to light. Light can act as a source of energy that initiates the reaction.

### Step 3: Determine the Expected Reaction
When SO₂ and Cl₂ are exposed to light, they undergo a photochemical reaction. This reaction typically leads to the formation of sulfur dichloride (SCl₂).

### Step 4: Write the Balanced Chemical Equation
The balanced chemical equation for the reaction can be written as:
\[ \text{SO}_2 + \text{Cl}_2 \xrightarrow{\text{light}} \text{SCl}_2 + \text{O}_2 \]

### Step 5: Identify the Product
From the balanced equation, we can see that the main product formed is sulfur dichloride (SCl₂).

### Conclusion
Thus, the product formed when a mixture of sulfur dioxide and chlorine is exposed to light is sulfur dichloride (SCl₂).

### Final Answer
The product formed is sulfur dichloride (SCl₂).

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