Question

33.Dry pellets of a base 'X' when kept in open absorbs moisture and turns sticky. The compound is
also formed by chlor-alkali process. Write chemical name and formula of X. Describe chlor-alkali
process with balanced chemical equation. Name the type of reaction occurs when X is treated with
dilute hydrochloric acid. Write the chemical equation. (ii) While diluting an acid, why is it
recommended that the acid should be added to water and not water to the acid?


34.a) Define activity series of metals. Arrange the met als gold, copper, iron and magnesium in order
of their increase in reactivity
(b) What will you observe when:
(i) Some zinc pieces are put in copper sulphate solution
(ii) Some silver pieces are put into green coloured ferrous sulphate solution​

Answer 1

Answer: 33:The base is sodium hydroxide and the chemical formula is NaOH. Chlor alkali process is basically the formation of Caustic soda or sodium hydroxide.

         34:the series that shows the gradual decrease in the reactive news of              

           metals is called the reactivity series

            Mg...Iron... Copper.....Gold

            Zinc Sulphate

            No reaction

Answer 2

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