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Science CBSE Homework Assignments
Class 10
Chemical reaction and equations
Types of chemical reaction

2. Select the correct answers: NCERT- book back one mark questions - III

Task:

4 m.

Select the correct answer:

1. Write the balanced chemical equation for the following.

Zinc carbonate(s) → Zinc oxide(s) + Carbon dioxide(g)

\(ZnCO_3\)(s) → \(ZnO\)(s) + \(CO_2\)(g)
\(ZnCO_3\)(s) → \(ZnO\)(s) + \(CO_3\)(g)
\(ZnCO_3\)(s) → \(ZrO\)(s) + \(CO_2\)(g)
\(ZnHO_3\)(s) → \(ZnO\)(s) + \(CO_2\)(g)
\(ZnCO_3\)(s) → \(ZnS\)(s) + \(CO_2\)(g)

2. Identify the type of the following reaction.

Potassium bromide(aq) + Barium iodide(aq) → Potassium iodide(aq) + Barium bromide(s)

Displacement reaction
Double displacement reaction
Combination reaction
Decomposition reaction
Oxidation and reduction reaction

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