Science MCQs

Science MCQs offer a general overview of multiple scientific disciplines such as physics, chemistry, and biology. These questions are ideal for students, job seekers, and competitive exam candidates looking to enhance their scientific knowledge. Whether you're preparing for SSC, HSSC, or general job tests, these MCQs provide a mix of theoretical and practical science questions. This category is particularly useful for testing concepts related to laws of motion, periodic table, cell structure, human anatomy, electricity, and more. The MCQs are curated to support concept building and revision. They also help in developing problem-solving abilities and logical analysis skills, which are crucial in science-based exams.

Q: Substance responsible for rusting of iron
A) Both A and B
B) Carbon dioxide
C) Water
D) Oxygen
Q: Liquid metal used in thermometers
A) Copper
B) Mercury
C) Silver
D) Lead
Q: Device used to see tiny objects
A) Microscope
B) Telescope
C) Periscope
D) Binoculars
Q: Human eye is sensitive to
A) X-rays
B) Ultraviolet
C) Visible light
D) Infrared
Q: Earth completes one rotation in
A) 12 hours
B) 24 hours
C) 48 hours
D) 36 hours
Q: Instrument used to detect earthquakes
A) Speedometer
B) Seismograph
C) Barometer
D) Thermometer
Q: Common salt’s chemical formula
A) CaCl₂
B) NaCl
C) NaCO₃
D) KCl
Q: Plant tissue responsible for food transport
A) Epidermis
B) Phloem
C) Cambium
D) Xylem
Q: Smallest bone in human body
A) Stapes
B) Femur
C) Tibia
D) Radius
Q: Total number of teeth in adult humans
A) 30
B) 36
C) 28
D) 32