Discharged SO2 may be put in a tank of __________ and not be used for any other purpose?

The correct answer is that discharged SO2 may be put in a tank of absorptive brine and not be used for any other purpose because absorptive brine effectively captures and neutralizes sulfur dioxide, preventing it from contributing to environmental pollutants. This method is particularly useful for managing sulfur dioxide emissions, helping to keep air quality within safe limits.

Absorptive brine serves as a medium that can absorb the SO2, allowing for safe handling and eventual disposal or treatment. Using this substance specifically for this purpose ensures that the brine's properties are leveraged to mitigate harmful emissions while adhering to safety regulations. It is critical in industries where sulfur dioxide is a byproduct, ensuring compliance with environmental protection standards.