Last Updated on May 7, 2025 by XAM CONTENT
Understanding the key concepts of Class 7 Science Chapter 4 – The World of Metals and Non-metals is crucial for exam success. To make your revision easier, we have created chapterwise mcq questions with Answers for class 7 Science based on the latest syllabus and exam pattern. It is a part of MCQ Questions for CBSE Class 7 Science Series.
These multiple-choice questions will help you assess your knowledge, improve accuracy, and boost confidence for your exams. Whether you are preparing for school tests, online tests or competitive exams, these The World of Metals and Non-metals MCQs will strengthen your conceptual clarity.
| Chapter | The World of Metals and Non-metals |
| Book | Curiosity |
| Type of Questions | MCQ Questions |
| Nature of Questions | Competency Based Questions |
| Board | CBSE |
| Class | 7 |
| Subject | Science |
| Useful for | Class 7 Studying Students |
| Answers provided | Yes |
| Difficulty level | Mentioned |
| Important Link | Class 7 Science Chapterwise MCQ Questions |
MCQ Questions on The World of Metals and Non-metals Class 7 Science – Curiosity
MCQs
Q1. Which property allows metals like copper to be beaten into thin sheets?
(a) Ductility
(b) Sonority
(c) Malleability
(d) Conductivity
Show Answer
Answer: (c)
Explanation: Malleability is the property of metals that allows them to be beaten into thin sheets.
Q2. Which of these metals is found in a liquid state at room temperature?
(a) Iron
(b) Mercury
(c) Aluminium
(d) Zinc
Show Answer
Answer: (b)
Explanation: Mercury is the only metal that is liquid at room temperature.
Q3. The ability of a metal to be drawn into thin wires is called:
(a) Flexibility
(b) Brittleness
(c) Ductility
(d) Sonority
Show Answer
Answer: (c)
Explanation: Ductility is the property by which metals can be drawn into wires.
Q4. Which non-metal is essential for respiration?
(a) Nitrogen
(b) Sulfur
(c) Oxygen
(d) Carbon
Show Answer
Answer: (c)
Explanation: Oxygen is a non-metal required for breathing and respiration in living organisms.
Q5. Which property of metals allows them to produce a ringing sound when struck?
(a) Conductivity
(b) Malleability
(c) Ductility
(d) Sonority
Show Answer
Answer: (d)
Explanation: Metals produce a ringing sound due to their sonority.
Q6. What is the brown deposit that forms on iron objects when exposed to moist air called?
(a) Corrosion
(b) Oxidation
(c) Rust
(d) Tarnish
Show Answer
Answer: (c)
Explanation: Rust is the brown substance formed when iron reacts with air and moisture.
Q7. Which of the following materials is a good conductor of heat?
(a) Wood
(b) Plastic
(c) Iron
(d) Coal
Show Answer
Answer: (c)
Explanation: Metals like iron conduct heat well, making them suitable for cooking utensils.
Q8. Which of the following is used to prevent rusting of iron?
(a) Painting
(b) Heating
(c) Freezing
(d) Wetting
Show Answer
Answer: (a)
Explanation: Painting forms a protective layer that prevents air and water from reaching the iron surface.
Q9. Which oxide turns red litmus paper blue?
(a) Sulfur oxide
(b) Magnesium oxide
(c) Carbon dioxide
(d) Chlorine oxide
Show Answer
Answer: (b)
Explanation: Magnesium oxide is basic in nature and turns red litmus blue.
Q10. What is the nature of non-metal oxides like sulfur dioxide?
(a) Basic
(b) Acidic
(c) Neutral
(d) Salty
Show Answer
Answer: (b)
Explanation: Non-metal oxides like sulfur dioxide form acidic solutions in water.
Q11. What protects electricians from electric shocks?
(a) Metal gloves
(b) Bare hands
(c) Rubber gloves
(d) Iron rods
Show Answer
Answer: (c)
Explanation: Rubber is an insulator and protects electricians from electrical currents.
Q12. Why is sodium stored in kerosene?
(a) It is shiny
(b) It reacts with moisture and air
(c) It has high density
(d) It melts easily
Show Answer
Answer: (b)
Explanation: Sodium is very reactive with air and water, so it is stored in kerosene to prevent accidents.
Q13. What is the green coating on copper objects due to?
(a) Oxidation
(b) Painting
(c) Rusting
(d) Tinning
Show Answer
Answer: (a)
Explanation: The green coating is a result of oxidation of copper in moist air.
Q14. Which element is used in antiseptic solutions for wounds?
(a) Nitrogen
(b) Iodine
(c) Hydrogen
(d) Carbon
Show Answer
Answer: (b)
Explanation: Iodine is a non-metal used in antiseptic solutions.
Q15. Why are metal wires used in musical instruments?
(a) They are brittle
(b) They are elastic
(c) They are ductile
(d) They are rough
Show Answer
Answer: (c)
Explanation: Metals are ductile and can be drawn into wires used in musical instruments.
Q16. What happens when sulfur burns in air?
(a) Forms a basic oxide
(b) Forms an acidic oxide
(c) Forms water
(d) Forms metal
Show Answer
Answer: (b)
Explanation: Sulfur burns to form sulfur dioxide, an acidic oxide.
Q17. Which of the following is a non-metal used in fertilizers?
(a) Nitrogen
(b) Aluminium
(c) Zinc
(d) Copper
Show Answer
Answer: (a)
Explanation: Nitrogen is a non-metal essential for plant growth and used in fertilizers.
Q18. What makes aluminium suitable for food wrapping?
(a) It is expensive
(b) It is brittle
(c) It is malleable
(d) It is non-metallic
Show Answer
Answer: (c)
Explanation: Aluminium is malleable and can be rolled into thin sheets for wrapping food.
Q19. Which property is exhibited by metal objects like bells?
(a) Brittleness
(b) Sonority
(c) Dullness
(d) Rigidity
Show Answer
Answer: (b)
Explanation: Bells are made of metals due to their sonorous property – the ability to produce sound.
Q20. Which one is NOT a property of metals?
(a) Malleability
(b) Ductility
(c) Poor conductor of electricity
(d) Lustre
Show Answer
Answer: (c)
Explanation: Metals are good conductors of electricity; poor conductivity is a property of non-metals.
We hope the given mcq questions with Answers for The World of Metals and Non-metals Class 7 helps you in your learning.
Quiz: The World of Metals and Non-metals
Click the button below to start the quiz on Chapter 4.
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Topics from which mcq questions may be asked
- Metals and their properties
- Non-metals
- Uses of metals
Metals shape civilizations; non-metals sustain life.
Frequently Asked Questions (FAQs) on The World of Metals and Non-metals MCQ Questions
Q1: Why should I practice Class 7 Science Chapter 4 MCQs?
A1: Practicing MCQs helps in quick revision, improves problem-solving speed, and enhances conceptual understanding of important topics in Class 7 Science.
Q2: Are these Class 7 Science MCQs based on the latest syllabus?
A2: Yes, all the MCQs are designed as per the latest CBSE syllabus and exam pattern to help students prepare effectively.
Q3: Where can I find more MCQs for Class 7 Science?
A3: You can find more chapter-wise MCQs on our website. These are designed to cover important concepts and prepare you for exams.
Q4: Are the answers provided for all MCQs?
A4: Yes, each MCQ is accompanied by the correct answer and explanations to help students understand and learn better.
Q5: How can I improve my performance in Class 7 Science MCQs?
A5: To improve your performance, practice regularly, revise key concepts, and take mock tests to assess your knowledge.
Q6: Do these MCQs help in school exams?
A6: Yes, these MCQs are aligned with school exam patterns and help in scoring well by strengthening conceptual clarity.
Q7: Can I download these MCQs for offline practice?
A7: Yes, you can download or print these MCQs for convenient offline practice.
