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| 1. |
What happen when bleaching powder is exposed to air? |
| Answer» Bleaching powder is a yellowish white powder with a strong smell of chlorine. When exposed to air, bleaching powder gives a smell of chlorine. This is because bleaching powder reacts with carbon dioxide from the atmosphere to produce calcium carbonate and chlorine gas. CaOCl2 + CO2 → CaCO3 + Cl2 ↑ | |