1. The electron was discovered by:
- Bohr
- J.J. Thomson
- Chadwick
- Rutherford
Answer: B) J.J. Thomson
Explanation: In 1897.
MCQs / General Science / General Science for Initial Tests
General Science for Initial Tests MCQs — General Science
49 multiple-choice questions on General Science for Initial Tests from General Science, each with the correct answer and, where available, a teacher's explanation. Read through them to revise the chapter, then practise the same questions one by one to test yourself.
2. The planet closest to the Sun is:
- Mercury
- Earth
- Mars
- Venus
Answer: A) Mercury
Explanation: Mercury.
3. The smallest bone in the human body is the:
- patella
- radius
- femur
- stapes
Answer: D) stapes
Explanation: In the middle ear.
4. Ohm's law is:
- F = ma
- E = mc²
- P = VI only
- V = IR
Answer: D) V = IR
Explanation: Voltage = current × resistance.
5. Deficiency of vitamin D causes:
- goitre
- anaemia
- rickets
- scurvy
Answer: C) rickets
Explanation: Rickets.
6. Deficiency of vitamin C causes:
- night blindness
- beriberi
- scurvy
- rickets
Answer: C) scurvy
Explanation: Scurvy.
7. The SI unit of power is:
- watt
- volt
- ampere
- joule
Answer: A) watt
Explanation: Power in watts.
8. The largest planet in the solar system is:
- Earth
- Saturn
- Jupiter
- Neptune
Answer: C) Jupiter
Explanation: Jupiter.
9. The ozone layer protects us from:
- ultraviolet rays
- infrared rays
- sound waves
- radio waves
Answer: A) ultraviolet rays
Explanation: Ozone absorbs UV.
10. Pakistan's first Nobel laureate in Physics was:
- Dr Samar Mubarakmand
- Dr Atta-ur-Rahman
- Dr Abdus Salam
- Dr A.Q. Khan
Answer: C) Dr Abdus Salam
Explanation: In 1979.
11. Malala Yousafzai received the Nobel Peace Prize in:
- 2018
- 2010
- 2012
- 2014
Answer: D) 2014
Explanation: Youngest ever Nobel laureate.
12. The number of bones in an adult human body is:
- 186
- 206
- 212
- 300
Answer: B) 206
Explanation: 206.
13. Rusting of iron requires:
- oxygen and water
- carbon dioxide only
- nitrogen only
- heat only
Answer: A) oxygen and water
Explanation: Both are needed.
14. The hottest planet in the solar system is:
- Venus
- Mars
- Jupiter
- Mercury
Answer: A) Venus
Explanation: Thick CO₂ atmosphere traps heat.
15. The speed of light is about:
- 1,500 m/s
- 340 m/s
- 3 × 10⁸ m/s
- 3 × 10⁵ m/s
Answer: C) 3 × 10⁸ m/s
Explanation: 300,000 km/s.
16. A light year is a unit of:
- time
- speed
- distance
- light intensity
Answer: C) distance
Explanation: Distance light travels in a year.
17. Acceleration due to gravity on Earth is about:
- 98 m/s²
- 9.8 m/s²
- 1.6 m/s²
- 0.98 m/s²
Answer: B) 9.8 m/s²
Explanation: g ≈ 9.8 m/s².
18. Malaria is spread by the:
- rat flea
- Aedes mosquito
- female Anopheles mosquito
- housefly
Answer: C) female Anopheles mosquito
Explanation: Plasmodium parasite.
19. Oxygen is carried in blood by:
- white blood cells
- haemoglobin in red blood cells
- platelets
- plasma only
Answer: B) haemoglobin in red blood cells
Explanation: Haemoglobin.
20. The theory of relativity was given by:
- Isaac Newton
- Albert Einstein
- Stephen Hawking
- Galileo
Answer: B) Albert Einstein
Explanation: Einstein.
21. Pakistan's national space agency is:
- PAEC
- ISRO
- SUPARCO
- NASA
Answer: C) SUPARCO
Explanation: Space & Upper Atmosphere Research Commission.
22. One byte equals:
- 8 bits
- 4 bits
- 16 bits
- 1024 bits
Answer: A) 8 bits
Explanation: 8 bits.
23. Plants release which gas during photosynthesis?
- Oxygen
- Hydrogen
- Nitrogen
- Carbon dioxide
Answer: A) Oxygen
Explanation: O₂ is released.
24. The largest internal organ is the:
- skin
- liver
- stomach
- lungs
Answer: B) liver
Explanation: Liver.
25. The first man to set foot on the Moon was:
- John Glenn
- Buzz Aldrin
- Neil Armstrong
- Yuri Gagarin
Answer: C) Neil Armstrong
Explanation: 1969, Apollo 11.
Page 1 of 2 Next