In which one of the following situations a chemical reaction does not occur?
In which one of the following situations a chemical reaction does not occur?
Options
Official answer
Melting of glaciers
Marking scheme
- 1.1 mark
Hint
Identify the situation that does not involve a chemical change.
Quick oral answer
Melting of glaciers is a physical change, not a chemical reaction.
Common mistakes
- 1.Confusing physical and chemical changes
Analysis and explanation
The question requires the student to identify a situation where a chemical reaction does not occur. The correct answer is melting of glaciers, as it is a physical change and not a chemical reaction. The other options involve chemical reactions, such as spoilage of milk, fermentation of grapes, and rusting of an iron nail.
Interesting facts
Chemical reactions involve the transformation of one substance into another, whereas physical changes do not.
Question details
Q1 of 39 questions
- Board
- CBSE
- Class
- Class 10
- Subject
- Science
- Year
- 2025
- Section
- Section A
- Marks
- 1
- Type
- MCQ
- Chapter
- Chemical Reactions and Equations
- Topic
- Chemical Reactions
- Bloom's level
- Remembering
- 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 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 "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" 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.