Q21
2 marksVery Short AnswerSection Section B

State whether the given chemical reaction is a redox reaction or not. Justify your answer.

MnO2+4HClMnCl2+2H2O+Cl2MnO_2 + 4HCl \longrightarrow MnCl_2 + 2H_2O + Cl_2

Chemical Reactions and Equations
Redox Reactions
Official Answer

Yes, the given chemical reaction is a redox reaction because Mn in MnO2 is reduced to Mn2+ in MnCl2 and Cl in HCl is oxidized to Cl2.

redox reaction oxidation reduction

Marking Scheme

  • 12 marks

Hint

Identify the oxidation and reduction reactions in the given chemical reaction.

Quick Oral Answer

Yes, the given chemical reaction is a redox reaction because Mn in MnO2 is reduced to Mn2+ in MnCl2 and Cl in HCl is oxidized to Cl2.

Analysis & Explanation

The given chemical reaction is MnO2 + 4HCl -> MnCl2 + 2H2O + Cl2.

In this reaction, Mn in MnO2 is reduced to Mn2+ in MnCl2 and Cl in HCl is oxidized to Cl2.

Therefore, the given chemical reaction is a redox reaction.

Common Mistakes

  1. 1The given chemical reaction is not a redox reaction.

Interesting Facts

Redox reactions are used in the production of electricity in batteries.

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Frequently Asked Questions

How many marks does this question carry in CBSE Class 10 Science 2023?

This question carries 2 marks in the CBSE Class 10 Science 2023 examination.

Which chapter does this question come from in Science?

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

What topic does this question cover in Science?

This question covers the topic "Redox Reactions" from CBSE Class 10 Science.

What type of question is this in the CBSE Class 10 Science 2023 paper?

This is a Very Short Answer question from Section Section B in the CBSE Class 10 Science 2023 paper.