Chemistry · Acids, Bases and Salts
A laboratory assistant accidentally leaves a container of bleaching powder (CaOCl2) open to the atmosphere. What reaction occurs as a result of prolonged exposure to air?
- 1It rapidly absorbs moisture to turn into pure slaked lime paste
- 2It undergoes sulfur absorption from air contaminants and turns bright yellow
- 3It reacts with carbon dioxide from the air, gradually releasing chlorine gas and decomposing✓
- 4It reacts with atmospheric oxygen and converts into a highly acidic liquid
Correct answer
It reacts with carbon dioxide from the air, gradually releasing chlorine gas and decomposing
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