Assertion (A): A piece of Zinc metal gets reddish brown coating when kept in copper sulphate solution for some time. Reason (R): Copper is more reactive metal than Zinc.

Metals and Non-metals

Reactivity Series

Options

(A)Both (A) and (R) are true and (R) is the correct explanation of (A).

(B)Both (A) and (R) are true and (R) is not correct explanation of (A).

(C)(A) is true, but (R) is false.

(D)(A) is false, but (R) is true.

Official Answer

Zinc is more reactive than copper. When zinc is kept in copper sulphate solution, it displaces copper from the solution and gets coated with reddish brown copper.

Zinccopperreactivity seriesdisplacement reaction

Marking Scheme

11 mark

Hint

Recall the reactivity series of metals.

Quick Oral Answer

Zinc is more reactive than copper, so it displaces copper from the solution and gets coated with reddish brown copper.

Analysis & Explanation

The assertion is true, but the reason is false. Zinc is more reactive than copper, so it displaces copper from the solution and gets coated with reddish brown copper.

Common Mistakes

1Confusing the reactivity of zinc and copper.

Interesting Facts

Zinc is used as a protective coating for iron to prevent rusting.

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Frequently Asked Questions

How many marks does this question carry in CBSE Class 10 Science 2024?

This question carries 1 mark in the CBSE Class 10 Science 2024 examination.

Which chapter does this question come from in Science?

This question is from the chapter "Metals and Non-metals" in the CBSE Class 10 Science syllabus.

What topic does this question cover in Science?

This question covers the topic "Reactivity Series" from CBSE Class 10 Science.

What type of question is this in the CBSE Class 10 Science 2024 paper?

This is a MCQ question from Section A in the CBSE Class 10 Science 2024 paper.