Class 10 Science Mots Repeated MCQS

Boost your exam prep with our curated list of Class 10 Science Most Repeated MCQs! This post features frequently asked multiple-choice questions from previous board exams, covering chapters like Chemical Reactions, Life Processes, Light, and Electricity. Ideal for quick revision and last-minute practice, these important Class 10 Science MCQs help you score higher in your board exams. Perfect for CBSE Class 10 students, this resource is also great for science quiz preparation and competitive exams.

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Class 10 Science Most Repeated MCQs | Important Questions for Board Exams

If you are preparing for your Class 10 Science board exams, practicing most repeated MCQs (Multiple Choice Questions) can be your key to success. These questions are frequently asked in various school boards like CBSE, ICSE, and state boards, making them an essential part of your exam preparation.

In this post, we provide Class 10 Science important MCQs chapter-wise, covering Physics, Chemistry, and Biology. These repeated objective questions are selected based on past papers and expert analysis.

✅ Why Practice Class 10 Science MCQs?

Practicing Class 10 Science multiple choice questions helps you:

Understand key concepts
Improve speed and accuracy
Prepare for board exams and mock tests
Get familiar with the exam pattern
Score higher with objective-type questions

📚 Chapter-wise Class 10 Science Most Repeated MCQs

🔬 Chapter 1: Chemical Reactions and Equations

1. What is the chemical formula of quicklime?
A. CaCO₃
B. Ca(OH)₂
C. CaO
D. NaOH
✅ Answer: C. CaO

2. Which of the following is a displacement reaction?
A. Zn + H₂SO₄ → ZnSO₄ + H₂
B. AgNO₃ + NaCl → AgCl + NaNO₃
C. HCl + NaOH → NaCl + H₂O
D. CaCO₃ → CaO + CO₂
✅ Answer: A. Zn + H₂SO₄ → ZnSO₄ + H₂

🧪 Chapter 2: Acids, Bases and Salts

1. Which acid is present in lemon?
A. Acetic acid
B. Citric acid
C. Oxalic acid
D. Tartaric acid
✅ Answer: B. Citric acid

2. What is the pH of a neutral solution?
A. 5
B. 6
C. 7
D. 8
✅ Answer: C. 7

🌱 Chapter 6: Life Processes

1. Which part of the plant conducts photosynthesis?
A. Root
B. Stem
C. Leaf
D. Flower
✅ Answer: C. Leaf

2. Which enzyme is present in saliva?
A. Pepsin
B. Trypsin
C. Amylase
D. Lipase
✅ Answer: C. Amylase

⚡ Chapter 12: Electricity

1. What is the SI unit of resistance?
A. Ohm
B. Ampere
C. Volt
D. Watt
✅ Answer: A. Ohm

2. Which law relates voltage, current, and resistance?
A. Newton’s Law
B. Ohm’s Law
C. Faraday’s Law
D. Coulomb’s Law
✅ Answer: B. Ohm’s Law

💡 Chapter 13: Magnetic Effects of Electric Current

1. The magnetic field inside a long straight solenoid is:
A. Zero
B. Weak and irregular
C. Strong and uniform
D. Weak at the center
✅ Answer: C. Strong and uniform

2. What happens when a current-carrying conductor is placed in a magnetic field?
A. It melts
B. It breaks
C. It experiences a force
D. Nothing happens
✅ Answer: C. It experiences a force

🔁 How to Use These Class 10 Science Repeated MCQs?

Solve 10-15 MCQs daily
Review answers with explanations
Use a notebook to track incorrect responses
Practice chapter-wise quizzes after revision

🎯 Final Tips for Scoring High in Class 10 Science MCQs

Focus on NCERT Class 10 Science textbook
Revise important diagrams and definitions
Memorize chemical formulas and equations
Use flashcards for Biology terms
Attempt sample papers and mock tests

📌 Conclusion

Practicing the Class 10 Science most repeated MCQs is a smart strategy for scoring better marks in the board exam. These frequently asked questions reflect the exam trends and help strengthen your fundamentals. For best results, combine these MCQs with theory revision and regular testing.

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Great! Let’s continue with more most repeated Class 10 Science MCQs, covering additional chapters and key concepts from Physics, Chemistry, and Biology. These are highly useful for board exam preparation and competitive school-level exams.

🌍 Chapter 7: Control and Coordination

1. Which part of the brain is responsible for maintaining posture and balance?
A. Cerebrum
B. Medulla
C. Cerebellum
D. Pons
✅ Answer: C. Cerebellum

2. Which of the following is a plant hormone?
A. Insulin
B. Auxin
C. Adrenaline
D. Glucagon
✅ Answer: B. Auxin

🌾 Chapter 8: How Do Organisms Reproduce?

1. Which method of reproduction is common in Amoeba?
A. Budding
B. Binary fission
C. Fragmentation
D. Spore formation
✅ Answer: B. Binary fission

2. What is the function of the placenta during pregnancy?
A. Helps in respiration
B. Forms the embryo
C. Provides nutrients and oxygen
D. Protects the uterus
✅ Answer: C. Provides nutrients and oxygen

🧬 Chapter 9: Heredity and Evolution

1. Who is known as the father of genetics?
A. Charles Darwin
B. Gregor Mendel
C. Watson
D. Lamarck
✅ Answer: B. Gregor Mendel

2. Which of the following determines the sex of a child?
A. Egg
B. X chromosome of female
C. Y chromosome of male
D. All of the above
✅ Answer: C. Y chromosome of male

🌦️ Chapter 14: Sources of Energy

1. Which is a renewable source of energy?
A. Coal
B. Petroleum
C. Solar energy
D. Natural gas
✅ Answer: C. Solar energy

2. What is the disadvantage of thermal power plants?
A. Cheap fuel
B. Cause air pollution
C. Require less space
D. Produce clean energy
✅ Answer: B. Cause air pollution

🌍 Chapter 15: Our Environment

1. Which of the following is biodegradable?
A. Plastic
B. Glass
C. Vegetable peels
D. Aluminum foil
✅ Answer: C. Vegetable peels

2. The ozone layer is mainly found in:
A. Troposphere
B. Stratosphere
C. Mesosphere
D. Thermosphere
✅ Answer: B. Stratosphere

🔁 Chapter 16: Sustainable Management of Natural Resources

1. Which method helps in water conservation?
A. Afforestation
B. Deforestation
C. Urbanization
D. Overgrazing
✅ Answer: A. Afforestation

2. Chipko movement is associated with:
A. Saving rivers
B. Saving forests
C. Controlling pollution
D. Banning plastic
✅ Answer: B. Saving forests

📘 Extra Tips for Students

Here are some bonus tips to master Class 10 Science MCQs:

Use highlighted points while reading chapters
Create your own flashcards
Practice with previous years’ question papers
Join study groups or online MCQ quizzes
Don’t just memorize—understand the concepts

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Class 10 Science Mots Repeated MCQS

Class 10 Science Most Repeated MCQs | Important Questions for Board Exams

✅ Why Practice Class 10 Science MCQs?

📚 Chapter-wise Class 10 Science Most Repeated MCQs