General Science MCQs Series 2025, Check Most Common Questions Now

The General Science MCQs Series 2025 is a comprehensive collection of the most relevant and frequently asked questions across various exams.

This series covers key topics in Physics, Chemistry, Biology, and Environmental Science, designed to help aspirants excel in competitive exams like SSC, UPSC, RRB, and State Public Service Commission tests.

General Science MCQs Series 2025, Check Most Common Questions Now

1. Transuranic elements are members of which series of the periodic table?

• (a) Lanthanide series
• (b) Actinide series
• (c) Halogen series
• (d) Alkali series

2. Which of the following elements does NOT belong to Period 6 of the modern periodic table?

• (a) Silicon
• (b) Tungsten
• (c) Rhenium
• (d) Platinum

3. Lanthanides are often referred to as:

• (a) Alkali metals
• (b) Rare earth elements
• (c) Noble gases
• (d) Transition elements

4. Which year was declared by UNESCO as the International Year of the Periodic Table to mark its 150th anniversary?

• (a) 2018
• (b) 2019
• (c) 2020
• (d) 2021

5. Which element in the modern periodic table has the same number of valence electrons as caesium?

• (a) Aluminium
• (b) Barium
• (c) Potassium
• (d) Calcium

6. Which of the following vitamins is absent in eggs?

• (a) Vitamin A
• (b) Vitamin B
• (c) Vitamin C
• (d) Vitamin K

7. What is the essential amino acid for healthy skin and teeth, as it is a component of tooth enamel?

• (a) Leucine
• (b) Arginine
• (c) Phenylalanine
• (d) Threonine

8. Zinc plays an essential role in cell division and growth. Which category of nutrients does it belong to?

• (a) Macronutrient
• (b) Micronutrient
• (c) Carbohydrate
• (d) Fat

9. Which vitamins are present in milk?

• (a) Vitamin A, C, and D
• (b) Vitamin C, D, and E
• (c) Vitamin A, B, and D
• (d) Vitamin B, C, and D

10. When will you find the magnetic field strongest?

• (a) When the field lines are crowded
• (b) When the field lines are far apart
• (c) When poles are together
• (d) When no field lines are visible

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11. Which material is an excellent conductor of electricity?

• (a) Glass
• (b) Silver
• (c) Mica
• (d) Ebonite

12. What device is used to break or complete an electric circuit?

• (a) Wire
• (b) Bulb
• (c) Switch
• (d) Resistor

13. Resistance of a wire depends on:

• (a) Its density
• (b) Length and cross-section of the wire
• (c) Specific resistance of the material
• (d) The area of the wire only

14. Transuranic elements beginning with neptunium (93) are artificially produced in:

• (a) Thermal reactors
• (b) Solar plants
• (c) Nuclear reactors and accelerators
• (d) Geothermal plants

15. Which of the following elements is used in light bulb filaments?

• (a) Silicon
• (b) Tungsten
• (c) Rhenium
• (d) Platinum

16. Which amino acid is essential for protein synthesis and muscle repair?

• (a) Arginine
• (b) Leucine
• (c) Threonine
• (d) Phenylalanine

17. Which law states that the resistance of a wire is directly proportional to its length?

• (a) Newton’s Law
• (b) Coulomb’s Law
• (c) Ohm’s Law
• (d) Resistance Law

18. The International System unit for magnetic field strength is:

• (a) Ohm
• (b) Tesla
• (c) Joule
• (d) Ampere

19.The 40th Amendment of the Indian Constitution was applied to which Article?

• (a) Article 258
• (b) Article 275
• (c) Article 260
• (d) Article 300

20. Which of the following vitamins is also known as Ascorbic Acid?

• (a) Vitamin A
• (b) Vitamin B
• (c) Vitamin C
• (d) Vitamin D

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General Science MCQs Series 2025

Answer

1. (b) Actinide series
2. (a) Silicon
3. (b) Rare earth elements
4. (b) 2019
5. (b) Barium
6. (c) Vitamin C
7. (d) Threonine
8. (b) Micronutrient
9. (c) Vitamin A, B, and D
10. (a) When the field lines are crowded
11. (b) Silver
12. (c) Switch
13. (b) Length and cross-section of the wire
14. (c) Nuclear reactors and accelerators
15. (b) Tungsten
16. (b) Leucine
17. (c) Ohm’s Law
18. (b) Tesla
19. (a) Article 258
20. (c) Vitamin C

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