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Introduction to Qualitative Analysis

Why does blea...

Question

Why does bleaching powder deturates on exposure to air?

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Solution

When bleaching powder is exposed to air it reacts with Carbon dioxide present in the air to produce Calcium carbonate and Chlorine gas.

CaOCl2 + CO2 → CaCO3 + Cl2 ↑

So over time the bleaching powder gets detoriated by reacting with air over long exposure.

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