Home › Worksheets › CBSE › Class 10 › Science › Chemical Reactions

CBSE Class 10 Science — Chemical Reactions Question Paper & Practice Test

25 syllabus-aligned questions for Chemical Reactions and Equations. Preview 5 for free — sign up to generate, customize, and download the complete test as a printable PDF.

CBSE-aligned Ready-to-use questions Editable test format PDF export after signup
Customize This Test — Try Free → View Sample Questions
What is TeachEasy? An AI-powered worksheet generator built for Indian school teachers. Generate board-aligned question papers for CBSE, ICSE, and ISC in under 5 minutes — no design skills needed.

Preview 5 Chemical Reactions Questions

5 of 25 questions shown free. Unlock the full set with a free TeachEasy account.

CBSE Class 10 Science — Chemical Reactions
25-Question Practice Test · Mixed Difficulty · CBSE-Aligned
MCQ
Q1.
Which of the following is the correctly balanced equation for the formation of water?
A) H₂ + O₂ → H₂O
B) 2H₂ + O₂ → 2H₂O
C) H₂ + 2O₂ → H₂O₂
D) 4H₂ + O₂ → 4H₂O
Correct Answer: B
Short Answer
Q2.
Define a chemical reaction. State two observable signs that indicate a chemical change has taken place.
Assertion-Reason
Q3.
Assertion (A): Burning of magnesium ribbon in air is a combination reaction.
Reason (R): Two or more substances combine to form a single new product.

Choose the correct option:
A) Both A and R are true, and R is the correct explanation of A.
B) Both A and R are true, but R is not the correct explanation of A.
C) A is true but R is false.
D) A is false but R is true.
Conceptual
Q4.
Explain the difference between an exothermic and an endothermic reaction. Give one example of each from everyday life.
Short Answer
Q5.
In the reaction: Zn + H₂SO₄ → ZnSO₄ + H₂, identify the substance that is oxidised and the substance that is reduced. Justify your answer.

Questions 6–25 are locked.
Sign up free to unlock all 25 questions, answers, and printable PDF format.

Unlock All 25 Questions — Try Free →

Customize This Worksheet with TeachEasy

The preview shows a fixed sample. TeachEasy lets you generate and edit the full test.

Without TeachEasy TeachEasy Free ✓
5 visible questions Generate complete tests (up to 100 questions)
Fixed topic Customize board, class, subject, and topic
Fixed difficulty Choose easy, medium, hard, or mixed difficulty
PDF locked Export printable worksheets after signup
No editing Edit, regenerate, and save questions
Start Customizing This Test →

Related CBSE Class 10 Science Topics

Explore other chapter worksheets for the same class and subject.

Chemical Reactions

More chapter worksheets coming soon.

Frequently Asked Questions

Generate Your Own Question Paper

Want to customize this worksheet or generate 100 more questions? Pick your board, class, subject, topic, difficulty, and question type. TeachEasy creates a full question paper in minutes.

Try TeachEasy Free →