Consider the following chemical equation I and II

I. $Mg + 2HCl \longrightarrow MgCl_2 + H_2$

II. $NaOH + HCl \longrightarrow NaCl + H_2O$

The correct statement about these equations is -

Chemical Reactions and Equations

Types of Chemical Reactions

Options

(a)I is a displacement reaction and 'II' is a decomposition reaction.

(b)I is a displacement reaction and 'II' is double displacement reaction.

(c)Both 'I' and 'II' are displacement reactions.

(d)Both 'I' and 'II' are double-displacement reactions.

Official Answer

I is a displacement reaction and II is a double displacement reaction.

displacement reaction double displacement reaction

Hint

Identify the type of reaction based on the reactants and products.

Quick Oral Answer

I is a displacement reaction and II is a double displacement reaction.

I is a displacement reaction because Mg displaces H from HCl to form MgCl2 and H2.

II is a double displacement reaction because Na and H in NaOH and HCl are interchanged to form NaCl and H2O.

Displacement reactions are used in the extraction of metals from their ores.

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This question carries 1 mark in the CBSE Class 10 Science 2023 examination.

This question is from the chapter "Chemical Reactions and Equations" in the CBSE Class 10 Science syllabus.

This question covers the topic "Types of Chemical Reactions" from CBSE Class 10 Science.

This is a MCQ question from Section Section A in the CBSE Class 10 Science 2023 paper.