Q27
3 marksShort AnswerSection C

(a) What is a reactivity series of elements? How is it developed? Arrange the following elements as they are arranged in the reactivity series: Aluminum, Calcium, Copper, Lead

(b) Write balanced chemical equation to show the reaction of iron (III) oxide (Fe2O3\mathrm{Fe_2O_3}) with aluminium.

Metals and Non-metals
Reactivity Series
Official Answer

(a) The reactivity series is a list of metals arranged in the order of their decreasing activities. It is developed by performing displacement experiments. The correct order of the given elements in the reactivity series is: Calcium, Aluminium, Iron, Copper, Lead

(b) The balanced chemical equation for the reaction of iron (III) oxide (Fe2O3) with aluminium is: 2Al + Fe2O3 \rightarrow Al2O3 + 2Fe

Analysis & Explanation

The reactivity series is a list of metals arranged in the order of their decreasing activities. It is developed by performing displacement experiments. The correct order of the given elements in the reactivity series is: Calcium, Aluminium, Iron, Copper, Lead. The balanced chemical equation for the reaction of iron (III) oxide (Fe2O3) with aluminium is: 2Al + Fe2O3 \rightarrow Al2O3 + 2Fe

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Frequently Asked Questions

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

This question carries 3 marks in the CBSE Class 10 Science 2025 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 2025 paper?

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