CBSE CLASS X – SCIENCE
PRACTICE SAMPLE PAPER – 01
Chapters 1, 2, 5, 6, 7, 9 & 10 | Time: 3 Hours | Maximum Marks: 80
General Instructions
• All questions are compulsory.
• The question paper consists of 39 questions divided into Sections A–E.
• Section A contains 20 questions of 1 mark each.
• Section B contains 6 questions of 2 marks each.
• Section C contains 7 questions of 3 marks each.
• Section D contains 3 questions of 5 marks each.
• Section E contains 3 case-based questions of 4 marks each.
• Internal choices are provided wherever applicable.
• Draw neat and labelled diagrams wherever required.
• Use of calculators is not permitted.
SECTION A – Multiple Choice Questions (20 × 1 = 20)
Q1. Which of the following is a decomposition reaction?
A. CaO + H■O → Ca(OH)■
B. 2Mg + O■ → 2MgO
C. CaCO■ → CaO + CO■
D. Zn + CuSO■ → ZnSO■ + Cu
Q2. When zinc granules are added to dilute hydrochloric acid, the gas evolved is:
A. Oxygen B. Hydrogen C. Carbon dioxide D. Chlorine
Q3. A solution having pH = 2 is:
A. Strongly acidic B. Weakly acidic C. Neutral D. Basic
Q4. Baking soda is chemically known as:
A. Sodium carbonate B. Sodium hydrogen carbonate C. Sodium hydroxide D. Calcium carbonate
Q5. Which part of the digestive system is mainly responsible for absorption of digested food?
A. Stomach B. Small intestine C. Large intestine D. Oesophagus
Q6. The oxygen-carrying pigment in human blood is:
A. Chlorophyll B. Haemoglobin C. Melanin D. Insulin
Q7. Which hormone is responsible for regulation of blood sugar level?
A. Thyroxine B. Insulin C. Adrenaline D. Growth hormone
Q8. The part of the brain mainly responsible for maintaining posture and balance is:
A. Cerebrum B. Cerebellum C. Medulla D. Hypothalamus
Q9. Which of the following is an asexual mode of reproduction?
A. Fertilisation B. Pollination C. Binary fission D. Fusion of gametes
Q10. The organ that produces sperm in human males is:
A. Prostate gland B. Testis C. Vas deferens D. Urethra
PRACTICE SAMPLE PAPER – 01
Chapters 1, 2, 5, 6, 7, 9 & 10 | Time: 3 Hours | Maximum Marks: 80
General Instructions
• All questions are compulsory.
• The question paper consists of 39 questions divided into Sections A–E.
• Section A contains 20 questions of 1 mark each.
• Section B contains 6 questions of 2 marks each.
• Section C contains 7 questions of 3 marks each.
• Section D contains 3 questions of 5 marks each.
• Section E contains 3 case-based questions of 4 marks each.
• Internal choices are provided wherever applicable.
• Draw neat and labelled diagrams wherever required.
• Use of calculators is not permitted.
SECTION A – Multiple Choice Questions (20 × 1 = 20)
Q1. Which of the following is a decomposition reaction?
A. CaO + H■O → Ca(OH)■
B. 2Mg + O■ → 2MgO
C. CaCO■ → CaO + CO■
D. Zn + CuSO■ → ZnSO■ + Cu
Q2. When zinc granules are added to dilute hydrochloric acid, the gas evolved is:
A. Oxygen B. Hydrogen C. Carbon dioxide D. Chlorine
Q3. A solution having pH = 2 is:
A. Strongly acidic B. Weakly acidic C. Neutral D. Basic
Q4. Baking soda is chemically known as:
A. Sodium carbonate B. Sodium hydrogen carbonate C. Sodium hydroxide D. Calcium carbonate
Q5. Which part of the digestive system is mainly responsible for absorption of digested food?
A. Stomach B. Small intestine C. Large intestine D. Oesophagus
Q6. The oxygen-carrying pigment in human blood is:
A. Chlorophyll B. Haemoglobin C. Melanin D. Insulin
Q7. Which hormone is responsible for regulation of blood sugar level?
A. Thyroxine B. Insulin C. Adrenaline D. Growth hormone
Q8. The part of the brain mainly responsible for maintaining posture and balance is:
A. Cerebrum B. Cerebellum C. Medulla D. Hypothalamus
Q9. Which of the following is an asexual mode of reproduction?
A. Fertilisation B. Pollination C. Binary fission D. Fusion of gametes
Q10. The organ that produces sperm in human males is:
A. Prostate gland B. Testis C. Vas deferens D. Urethra
