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Question
A dry pellet of a common base B, when kept in open absorbs moisture and turns sticky. The compound is also of chloralkali process. Identify B What type of reaction occurs when B is treated with an acidic oxide ? Write a balanced chemical equation for one such solution.
Solution
The available information suggests that the base B is sodium hydroxide (NaOH). It is a deliquescent substance and becomes sticky on absorbing moisture from atmosphere. It is commercially formed by the electrolysis of a strong solution of sodium chloride (brine).
It reacts with an acidic oxide such as CO2 or SO, gas to form corresponding salt and water. For example,
`2"NaOH" + "CO"_2 -> "Na"_2"CO"_3 + "H"_2"O"`
`2"NaOH" + "SO"_2 -> "Na"_2"SO"_3 + "H"_2"O"`
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