Top 30 General Science MCQs for OSSSC RI, ARI, Amin, SFS, ICDS Supervisor 16 January 2024

General Science forms a crucial section in competitive exams such as OSSSC RI, ARI, Amin, and ICDS Supervisor. A sound understanding of scientific principles is essential for candidates aiming to excel in these examinations. In this article, we present a curated set of 30 Multiple-Choice Questions (MCQs) covering diverse topics within the realm of General Science.

Top 30 General Science MCQs for OSSSC RI, ARI, Amin, ICDS Supervisor 16 January 2024

1. What is the pH of H2O?
a) 6
b) 7
c) 8
d) 9
Answer: (b) 7

2. Which of the following gas is reduced in the reduction process?
a) Oxygen
b) Helium
c) Carbon
d) Hydrogen
Answer: (d) Hydrogen

3. Which of the following compound is mainly used in hand sanitizer?
a) Aldehyde
b) Acetic acid
c) Alcohol
d) Ketone
Answer: (c) Alcohol

4. What is the SI unit of frequency?
a) Diopter
b) Second
c) Hertz
d) Meter
Answer: (c) Hertz

5. Acid turns blue litmus paper into which color?
a) Black
b) Blue
c) Red
d) Orange
Answer: (c) Red

6. Which of the following enzymes is not present in the human stomach?
a) Pepsin
b) Hydrochloric acid
c) Mucus
d) Trypsin
Answer: (d) Trypsin

7. Which of the following gland is present in the human mouth?
a) Adrenal
b) Pituitary
c) Gonads
d) Salivary
Answer: (d) Salivary

8. Name the gland which is present above our kidneys?
a) Adrenal
b) Pituitary
c) Gonads
d) Salivary
Answer: (a) Adrenal

9. What is the basic unit of our neural system?
a) Neutron
b) Neuron
c) Nephron
d) Nucleon
Answer: (b) Neuron

10. What is the basic unit of our excretory system?
a) Neutron
b) Neuron
c) Nephron
d) Nucleon
Answer: (c) Nephron

11. What is the unit of wavelength?
a) Hertz
b) Diopter
c) Faraday
d) Meter
Answer: (d) Meter

12. What is the frequency range of white light?
a) 4 * 10^14 to 8 * 10^14
b) 4 * 10^14 to 9 * 10^14
c) 5 * 10^14 to 8 * 10^14
d) 5 * 10^14 to 9 * 10^14
Answer: (a) 4 * 10^14 to 8 * 10^14

13. What is the color of AgBr?
a) Blue
b) Brown
c) White
d) Yellow
Answer: (d) Yellow

14. What is the other name of Newton’s first law of motion?
a) Action-reaction
b) Change in momentum
c) Law of inertia
d) Constant momentum
Answer: (c) Law of inertia

15. According to Newton’s second law of motion, change in momentum per unit time is equal to ________.
a) Force
b) Energy
c) Acceleration
d) Work
Answer: (a) Force

16. What is the color of SO2 gas?
a) Blue
b) Grey
c) Colorless
d) Brown
Answer: (c) Colorless

17. What is the color of CuSO4?
a) Blue
b) Brown
c) Orange
d) White
Answer: (d) White

18. What is the SI unit of electric charge?
a) Coulomb
b) Ampere
c) Faraday
d) Ohm
Answer: (a) Coulomb

19. How many carbon atoms are present in heptane?
a) 6
b) 7
c) 8
d) 5
Answer: (b) 7

20. What is the chemical formula of benzene?
a) C6H6
b) C6H4
c) C8H6
d) C6H8
Answer: (a) C6H6

21. What is the atomic number of phosphorus?
a) 12
b) 13
c) 14
d) 15
Answer: (d) 15

22. Which of the following quantity increases in a group when we move from top to bottom?
a) Valency
b) Electronegativity
c) Atomic size
d) Ionization energy
Answer: (c) Atomic size

23. What is the pH range of acids?
a) 0 – 7
b) 7 – 14
c) 1 – 7
d) 7 – 15
Answer: (a) 0 – 7

24. Name the non-metals which have high melting and boiling point?
a) Gallium
b) Diamond
c) Cesium
d) Lead
Answer: (b) Diamond

25. Name the metal which is most ductile?
a) Gold
b) Silver
c) Copper
d) Iron
Answer: (a) Gold

26. What is the SI unit of current?
a) Coulomb
b) Ampere
c) Ohm
d) Volt
Answer: (b) Ampere

27. What is the SI unit of potential difference?
a) Volt
b) Ampere
c) Coulomb
d) Ohm
Answer: (a) Volt

28. Name the veins that carry oxygenated blood from the heart to other parts of the body?
a) Kidney
b) Arteries
c) Both (a) and (b)
d) None of these
Answer: (b) Arteries

29. Name the part of the body on which coronavirus affects the most.
a) Heart
b) Liver
c) Kidney
d) Lungs
Answer: (d) Lungs

30. Name the part of the eye on which the image is formed?
a) Cornea
b) Lens
c) Optical nerves
d) Brain
Answer: (a) Cornea