Question

An excess of calcium oxide is added to dilute hydrochloric acid containing some litmus. What is the product and what is the colour change of the litmus?

Answer 1

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When Calcium oxide reacts with Dilute Hydrochloric acid then it forms calcium chloride and water..

▪Calcium oxide + Hydrochloric acid ⇒ Calcium chloride and water.▪

Bleaching Powder is calcium Oxychloride. The chemical formula of bleaching powder is CaOCl2. When bleaching powder reacts with dil. HCl to liberate Cl2 gas,water and Calcium Chloride.

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