1.

A dry pellet of a common base B, when kept in open absorbs moisture andturns sticky. The compound B is also a by-product of chlor-alkali processIdentify B. State the type of reaction that occurs when B is treated withan acidic oxide, say sulphur dioxide. Also write chemical equation for thereaction involved.

Answer»

Compound B is NaOHSodium hydroxide (NaOH) is a commonly used base and it absorbs moisture from the atmosphere and becomes sticky.

The acidic oxides react with base to give salt and water. Lets take an acidic oxide - Sulphur dioxide.The reaction between NaOH and SO2 can be given as

2NaOH + SO2 -------> Na2SO3 + H2O



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