Identify the compounds `A` and `B`.
`PCl_5 + SO_2 rarr A + B `.

Explanation

To solve the problem of identifying the compounds \( A \) and \( B \) in the reaction \( PCl_5 + SO_2 \rightarrow A + B \), we can follow these steps:

### Step 1: Identify the Reactants
The reactants in the reaction are phosphorus pentachloride (\( PCl_5 \)) and sulfur dioxide (\( SO_2 \)).

### Step 2: Understand the Reaction
Phosphorus pentachloride is known to react with sulfur dioxide. We need to determine the products of this reaction.

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