Science MCQs
Science MCQs cover physics, chemistry, and biology basics, ideal for SSC, HSSC, and job exams. They enhance understanding of scientific concepts, laws, anatomy, and problem-solving skills essential for competitive and academic success.
Q: Element used in nuclear power generation
A) Iron
B) Gold
C) Uranium
D) Lead
✅ Correct Answer: C
Explanation: Uranium is used as a fuel in nuclear reactors to produce electricity.
Q: Primary gas in exhaled air
A) Hydrogen
B) Carbon dioxide
C) Oxygen
D) Nitrogen
✅ Correct Answer: B
Explanation: Carbon dioxide is the main gas exhaled after respiration.
Q: First man-made satellite sent into space
A) Hubble
B) Sputnik 1
C) Apollo 11
D) Voyager 1
✅ Correct Answer: B
Explanation: Sputnik 1 was launched by the Soviet Union in 1957 as the first satellite.
Q: Human organ storing bile
A) Liver
B) Intestine
C) Pancreas
D) Gallbladder
✅ Correct Answer: D
Explanation: The gallbladder stores bile produced by the liver to aid fat digestion.
Q: Device measuring temperature
A) Hygrometer
B) Speedometer
C) Barometer
D) Thermometer
✅ Correct Answer: D
Explanation: A thermometer is used to measure the temperature of substances.