Question 212 marksVery Short AnswerSection B

$A light green coloured solution of sulphate salt of metal 'P' is taken in a beaker, a rod of another metal 'Q' is put in this solution as shown the following figures: Identify the metals 'P' and 'Q' and write its chemical equation for the reaction that occurs. State the conclusion of this reaction in terms of reactivity series of metals.$

Q: A light green coloured solution of sulphate salt of metal 'P' is taken in a beaker, a rod of another metal 'Q' is put in this solution as shown the following figures: Identify the metals 'P' and 'Q' and write its chemical equation for the reaction that occurs. State the conclusion of this reaction in terms of reactivity series of metals.

The metal 'P' is copper (Cu) and the metal 'Q' is zinc (Zn). The chemical equation for the reaction that occurs is: CuSO4 + Zn $\rightarrow$ ZnSO4 + Cu

Chemical Reactions and Equations

Chemical Reactions and Equations

Official answer

\rightarrow

copper

zinc

displacement reaction

reactivity series

Marking scheme

1. $P = Cu$
2. $Q = Zn$
3. $\rightarrow$

Hint

$The light green coloured solution of sulphate salt of metal 'P' is copper sulphate (CuSO4). The metal 'Q' displaces copper from the copper sulphate solution because it is more reactive than copper.$

Quick oral answer

$\rightarrow$

Common mistakes

1. $confusing the metals 'P' and 'Q'$
2. $not writing the correct chemical equation$

Analysis and explanation

This question requires the student to identify the metals 'P' and 'Q' and write the chemical equation for the reaction that occurs. The student needs to understand the concept of displacement reactions and the reactivity series of metals to answer this question correctly.

Interesting facts

$Copper is a highly reactive metal.$

$Zinc is more reactive than copper.$

Question details

Q21 of 39 questions

Board: CBSE
Class: Class 10
Subject: Science
Year: 2025
Section: Section B
Marks: 2
Type: Very Short Answer
Chapter: Chemical Reactions and Equations
Topic: $Chemical Reactions and Equations$
Bloom's level: Knowledge
Syllabus topic: $Chemical Reactions and Equations$

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Frequently asked questions

$How many marks does this question carry in CBSE Class 10 Science 2025?$

$This question carries 2 marks in the CBSE Class 10 Science 2025 examination.$

$Which chapter does this question come from in Science?$

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

$What topic does this question cover in Science?$

$This question covers the topic "Chemical Reactions and Equations" from CBSE Class 10 Science.$

$What type of question is this in the CBSE Class 10 Science 2025 paper?$

$This is a Very Short Answer question from Section B in the CBSE Class 10 Science 2025 paper.$