True or False: CFCs are known to be highly reactive at lower levels of the atmosphere.

True or False: CFCs are known to be highly reactive at lower levels of the atmosphere.

• A. True
• B. False
• C. Not applicable
• D. Depends on concentration

Answer: (B)

The assertion that CFCs (chlorofluorocarbons) are highly reactive at lower levels of the atmosphere is false. CFCs are actually known for their stability in the lower atmosphere, which is a significant reason for their widespread use in refrigeration and aerosol propellants in the past. In fact, the chemical structure of CFCs makes them resistant to breakdown, allowing them to persist in the atmosphere for many years. When CFCs are released, they typically rise to the stratosphere, where they are eventually broken down by ultraviolet radiation, releasing chlorine atoms that contribute to stratospheric ozone depletion. This process occurs at higher altitudes rather than in the lower atmosphere. Thus, while CFCs can be harmful in terms of their long-term environmental impact, their relatively low reactivity at lower atmospheric levels is a key characteristic, supporting the rationale behind the incorrect nature of the statement in the question.

The assertion that CFCs (chlorofluorocarbons) are highly reactive at lower levels of the atmosphere is false. CFCs are actually known for their stability in the lower atmosphere, which is a significant reason for their widespread use in refrigeration and aerosol propellants in the past. In fact, the chemical structure of CFCs makes them resistant to breakdown, allowing them to persist in the atmosphere for many years.

When CFCs are released, they typically rise to the stratosphere, where they are eventually broken down by ultraviolet radiation, releasing chlorine atoms that contribute to stratospheric ozone depletion. This process occurs at higher altitudes rather than in the lower atmosphere. Thus, while CFCs can be harmful in terms of their long-term environmental impact, their relatively low reactivity at lower atmospheric levels is a key characteristic, supporting the rationale behind the incorrect nature of the statement in the question.