Question

4) You are given the following materials.
i) Marble chips ii) dilute hydrochloric acid iii) zinc granules.
Identify the type of reaction that takes place when marble chips and zinc granules
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Answer 1

Hey

Chemical formula of marble is CaCO3

Reaction with Dil.Hydrochloric acid:

CaCO3 + HCl==============>CaCl2 + H2O + CO2

It is an example of redox reaction

Reaction with zinc granules:

CaCO3 +Zn===========>ZnCO3 + Ca

Reaction of zinc granules with HCl

HCl + Zn========>ZnCl2 +H2

Answer 2

Answer:

Explanation:1)  this reaction is a neutralization reaction.

(2)  this reaction is a single displacement reaction.

Explanation :

As we know that the marble is a calcium carbonate. When calcium carbonate react with hydrochloric acid then it gives calcium chloride, water and carbon dioxide as products.

The balanced chemical reaction will be,

This reaction is a neutralization reaction in which an acid react with a base to give salt, water and carbon dioxide as a product.

When zinc granules react with hydrochloric acid then it gives zinc chloride and hydrogen gas as products.

The balanced chemical reaction will be,

This reaction is a single displacement reaction in which the most reactive metal displaces the least reactive metal.

.reactions solve it by yourself priyanka.....