1.

What happens when dilute hydrochloric acid is added to the following and write balanced chemical equations (i) Bleaching powder (ii) Zinc granules (iii) Baking soda

Answer»

Solution :(i) Calcium chloride and chlorine gas are formed.
`UNDERSET("POWDER")underset("Bleaching")(CaOCl_2(s))+2HCl(AQ)rarrunderset("chloride")underset("Calcium")(CaCl_(2)(s))+H_(2)O(l)+Cl_(2)(g)`
(ii) Hydrogen gas is evolved.
`underset("ZINC granucles")(Zn(s))+2HCl(aq)rarrunderset("chloride")underset("Zine")(ZnCl_(2)(aq))+H_(2)(g)`
(iii) Sodium chloride and carbon dioxide gas are formed.
`underset("Baking sada")(NaHCO_3(s))+HCl(aq) rarrunderset("chloride")underset("Sodium")(NaCl)(aq)+H_(2)O(l)+underset("dioxide")underset("Carbon")(CO_2(g))`


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