Q&A/Class 10/Chemistry

You are given the following materials (i) Marble chips (ii) dilute hydrochloric acid (iii) Zinc granules Identify the type of reaction when marble chips and zinc granules are added separately to acid taken in two test tubes.

Class 10CBSEChemistryChapter: Chemical Reactions and Equations
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  • Marble chips react with dilute hydrochloric acid to form calcium chloride and carbon dioxide. It is a double displacement reaction. CaCO₃ + 2hcl → CaCl₂ + H₂O + CO₂
  • Zinc granules react with dilute hydrochloric acid to give hydrogen gas. It is a displacement reaction. Zn(s) + 2HCl → ZnCl₂(aq) + H₂(g)

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