1. DNA full form?
A) Deoxyribo Nucleic Acid
B) Deoxyribonucleic Acid
C) Dual Acid
D) None
Answer: B) Deoxyribonucleic Acid
2. Hardest substance?
A) Gold
B) Iron
C) Diamond
D) Silver
Answer: C) Diamond
3. Largest organ?
A) Liver
B) Skin
C) Brain
D) Heart
Answer: B) Skin
4. Energy unit?
A) Joule
B) Watt
C) Volt
D) Ampere
Answer: A) Joule
5. Human heart chambers?
A) 2
B) 3
C) 4
D) 5
Answer: C) 4
6. Sun is a?
A) Planet
B) Star
C) Satellite
D) Comet
Answer: B) Star
7. Gas for breathing?
A) CO₂
B) O₂
C) H₂
D) N₂
Answer: B) O₂
8. Smallest bone?
A) Femur
B) Stapes
C) Tibia
D) Radius
Answer: B) Stapes
9. Brain part for thinking?
A) Cerebellum
B) Cerebrum
C) Medulla
D) Spine
Answer: B) Cerebrum
10. pH of pure water?
A) 5
B) 7
C) 9
D) 1
Answer: B) 7
