A metal, M, displaces iron from aqueous solution of ferrous sulphate but fails to do so in case of aqueous solution of aluminium sulphate. The metal M is
A metal, M, displaces iron from aqueous solution of ferrous sulphate but fails to do so in case of aqueous solution of aluminium sulphate. The metal M is
Options
Official answer
Magnesium
Hint
Use the reactivity series to determine the relative reactivity of the metals.
Quick oral answer
Magnesium is more reactive than iron but less reactive than aluminium, so it displaces iron from aqueous solution of ferrous sulphate but fails to do so in case of aqueous solution of aluminium sulphate.
Common mistakes
- 1.Confusing the reactivity series with the electrochemical series
Analysis and explanation
The metal M displaces iron from aqueous solution of ferrous sulphate but fails to do so in case of aqueous solution of aluminium sulphate. This means that M is more reactive than iron but less reactive than aluminium. From the reactivity series, we can see that magnesium is more reactive than iron but less reactive than aluminium. Therefore, the metal M is magnesium.
Interesting facts
Magnesium is a highly reactive metal that is often used in fireworks and flares.
Question details
Q2 of 39 questions
- Board
- CBSE
- Class
- Class 10
- Subject
- Science
- Year
- 2025
- Section
- Section A
- Marks
- 1
- Type
- MCQ
- Chapter
- Metals and Non-metals
- Topic
- Reactivity Series
- Bloom's level
- Remembering
- Syllabus topic
- Metals and Non-metals
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Frequently asked questions
How many marks does this question carry in CBSE Class 10 Science 2025?
This question carries 1 mark 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 MCQ question from Section A in the CBSE Class 10 Science 2025 paper.