Q3
1 markMCQSection A

Select from the following a statement which is not true about burning of magnesium ribbon in air:

Metals and Non-metals
Chemical Properties of Metals

Options

(A)It burns with a dazzling white flame.
(B)A white powder is formed on burning.
(C)It is an endothermic reaction.
(D)It is an example of a combination reaction.
Official Answer

The burning of magnesium ribbon in air is an exothermic reaction, not an endothermic reaction.

exothermic reaction

Marking Scheme

  • 11 mark

Hint

Recall the definition of exothermic and endothermic reactions.

Quick Oral Answer

The burning of magnesium ribbon in air is an exothermic reaction, not an endothermic reaction.

Analysis & Explanation

The burning of magnesium ribbon in air is an exothermic reaction, not an endothermic reaction.

Common Mistakes

  1. 1Confusing exothermic and endothermic reactions.

Interesting Facts

Magnesium ribbon burns with a dazzling white flame.

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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 "Chemical Properties of Metals" 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.