CIL MT 2020
⭕ A. Hydrochloric acid
⭕ B. Copper sulphate
⭕ C. Carbon tetrachloride
⭕ D. Methyl chloride
📚 Explanation:
Copper sulphate does not contain chlorine or bromine and therefore does not release radicals that destroy ozone molecules.
🔹 Chemicals like carbon tetrachloride and methyl chloride release chlorine radicals in the stratosphere.
🔹 These radicals break down ozone (O₃) into oxygen (O₂).
🔹 Copper sulphate is not involved in this process and is **not an ozone-depleting substance (ODS)**.
Copper sulphate does not contain chlorine or bromine and therefore does not release radicals that destroy ozone molecules.
🔹 Chemicals like carbon tetrachloride and methyl chloride release chlorine radicals in the stratosphere.
🔹 These radicals break down ozone (O₃) into oxygen (O₂).
🔹 Copper sulphate is not involved in this process and is **not an ozone-depleting substance (ODS)**.
👉 Therefore, the correct answer is: B. Copper sulphate
Key Points on Ozone-Depleting Chemicals:
- ODS chemicals: Release chlorine/bromine radicals.
- Examples: CFCs, carbon tetrachloride, methyl chloride.
- Copper sulphate: Not an ozone-depleting agent.
