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General Science (GK) Questions: List of 1000+ With Explanation for Competitive Exams

Last Updated : 04 Jan, 2024
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General Knowledge Questions and Answers: General Science covers many subjects exploring how the natural world works. Its specific areas are Physics, Chemistry, Biology, and Earth Sciences. Its main goal is to understand the rules and systems that control the universe, usually using real evidence and careful observation to solve its puzzles.

In this article, We have covered the List of General Science questions asked in several competitive exams like UPSC, SSC, RRB, banking, defense, and state-level exams.

Let’s get a closer look at the general science questions.


G.K. General Science

A big part of general science is its mix of different fields. It combines ideas from physics, which looks at matter and energy, to chemistry, which studies what substances are made of. Biology studies living things, while earth sciences study our planet’s processes. This mix helps us see how everything in nature connects.

General Science has lots of uses in our daily lives. It leads to amazing discoveries and new technologies that have changed industries, healthcare, farming, and how we understand space. Things like vaccines, better medicines, renewable energy, and exploring space all come from scientific study. This work has a big impact on humans and keeps pushing us to learn and create more. GK Questions for All Competitive Examinations 2023.

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How to remember General Science Question?

The following are the some of the tricks for remembering General Science question:

  1. Conceptual Understanding:
    • Instead of rote memorization, focus on understanding the underlying concepts.
  2. Mnemonics:
    • Create mnemonics or acronyms to remember lists or sequences of information.
  3. Visualization:
    • Associate scientific concepts with images or visual cues. Chunking:
      • Break down large amounts of information into smaller chunks. This makes it easier to remember and recall specific details.
  4. Association with Daily Life:
    • Relate scientific facts to everyday experiences. Making connections to real-life situations can make information more memorable.
  5. Flashcards:
    • Create flashcards with questions on one side and answers on the other. Regularly review the flashcards to reinforce your memory.
  6. Storytelling:
    • Create a narrative or story that incorporates the scientific concepts you need to remember. Storytelling can help make information more engaging and memorable.

memory rule: In order to remember something you have to assign meaning to it . Say why things are relevant. So for that you must have Idea about the syllabus, Exam Pattern and weightage for each topic of the general science question. also go through the previous year questions to define what kind of question has been asked.

General Science Questions and Answers (GK)

The following are the General Science Questions Ansers with Explanation for General knowledge competitiv

Question 1. What is the chemical symbol for the element gold?

A) Au

B) Ag

C) Gd

D) Gr

Answer: A) Au

Explanation: The chemical symbol for gold is Au, derived from its Latin name “Aurum.”

Question 2. Which of the following is an example of a renewable energy source?

A) Coal

B) Natural Gas

C) Solar Power

D) Nuclear Energy

Answer: C) Solar Power

Explanation: Solar power is derived from the sun and is considered a renewable energy source as it is continuously available and does not deplete natural resources.

Question 3. What is the process by which plants convert light energy into chemical energy?

A) Respiration

B) Photosynthesis

C) Transpiration

D) Fermentation

Answer: B) Photosynthesis

Explanation: Photosynthesis is the biological process in which green plants use sunlight to synthesize food from carbon dioxide and water.

Question 4. Which planet is known as the “Red Planet”?

A) Venus

B) Mars

C) Jupiter

D) Saturn

Answer: B) Mars

Explanation: Mars is often referred to as the “Red Planet” due to its reddish appearance caused by iron oxide (rust) on its surface.

Question 5. What is the pH value of pure water?

A) 5

B) 7

C) 9

D) 10

Answer: B) 7

Explanation: The pH value of pure water is 7, which is considered neutral on the pH scale.

Question 6. Which force keeps planets in orbit around the sun?

A) Gravitational force

B) Magnetic force

C) Electrostatic force

D) Nuclear force

Answer: A) Gravitational force

Explanation: The gravitational force of attraction between the planets and the sun keeps them in orbit.

Question 7. What is the smallest unit of matter that retains the properties of an element?

A) Molecule

B) Atom

C) Proton

D) Electron

Answer: B) Atom

Explanation: An atom is the smallest unit of matter that retains the chemical properties of an element.

Question 8. What is the function of the human respiratory system?

A) Transportation of oxygen in the blood

B) Digestion of food

C) Pumping blood to the body

D) Excretion of waste products

Answer: A) Transportation of oxygen in the blood

Explanation: The respiratory system is responsible for the exchange of gases (oxygen and carbon dioxide) between the body and the environment.

Question 9. Which process involves the conversion of a solid directly into a gas without passing through the liquid state?

A) Evaporation

B) Sublimation

C) Condensation

D) Melting

Answer: B) Sublimation

Explanation: Sublimation is the process where a substance changes directly from a solid to a gas without going through the liquid phase.

Question 10. What is the main function of the nervous system?

A) Regulation of body temperature

B) Movement of muscles

C) Control and coordination of body activities

D) Digestion of food

Answer: C) Control and coordination of body activities

Explanation: The nervous system coordinates and controls various body functions and activities by transmitting signals between different parts of the body.

Question 11. Which of the following is a greenhouse gas?

A) Oxygen (O2)

B) Carbon Dioxide (CO2)

C) Nitrogen (N2)

D) Hydrogen (H2)

Answer: B) Carbon Dioxide (CO2)

Explanation: Greenhouse gases like carbon dioxide trap heat in the Earth’s atmosphere, contributing to the greenhouse effect.

Question 12. Which process involves the formation of new individuals from the body cells of a single parent without the involvement of gametes?

A) Sexual reproduction

B) Asexual reproduction

C) Fertilization

D) Meiosis

Answer: B) Asexual reproduction

Explanation: Asexual reproduction involves the creation of new individuals from a single parent without the fusion of gametes.

Question 13. What is the SI unit of electric current?

A) Watt

B) Ohm

C) Ampere

D) Volt

Answer: C) Ampere

Explanation: The SI unit of electric current is the ampere (A).

Question 14. Which part of the plant conducts the process of transpiration?

A) Leaves

B) Roots

C) Stem

D) Flowers

Answer: A) Leaves

Explanation: Transpiration mainly occurs through the stomata present on the surface of leaves.

Question 15. What is the main function of the kidneys in the human body?

A) Regulation of blood sugar levels

B) Filtration of blood and waste removal

C) Production of digestive enzymes

D) Regulation of body temperature

Answer: B) Filtration of blood and waste removal

Explanation: The kidneys filter blood, remove waste products, regulate electrolyte balance, and maintain fluid balance in the body.

Question 16. What is the unit of measurement for force in the International System of Units (SI)?

A) Newton

B) Joule

C) Watt

D) Kilogram

Answer: A) Newton

Explanation: The unit of force in the SI system is the newton (N).

Question 17. Which of the following is NOT a primary color of light?

A) Red

B) Blue

C) Yellow

D) Green

Answer: D) Green

Explanation: The primary colors of light are red, blue, and yellow, which can be combined to produce other colors.

Question 18. Which gas makes up the largest percentage of the Earth’s atmosphere?

A) Oxygen

B) Nitrogen

C) Carbon Dioxide

D) Hydrogen

Answer: B) Nitrogen

Explanation: Nitrogen constitutes approximately 78% of the Earth’s atmosphere.

Question 19. What is the main function of the enzyme amylase in the digestive system?

A) Break down proteins

B) Break down fats

C) Break down carbohydrates

D) Aid in bile production

Answer: C) Break down carbohydrates

Explanation: Amylase is an enzyme that specifically breaks down complex carbohydrates (starches) into simpler sugars during the process of digestion.

Question 20. Which of the following is a characteristic of a chemical change?

A) Change in state

B) Reversible process

C) Formation of a new substance

D) Change in shape

Answer: C) Formation of a new substance

Explanation: A chemical change involves the formation of new substances with different properties, unlike physical changes which may involve alterations in state or shape but do not produce new substances.

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FAQs on General Science Questions

1. What is general science?

General science encompasses various scientific disciplines, serving as the foundational knowledge base that explores fundamental principles governing the natural world. It includes physics, chemistry, biology, earth sciences, and more.

2. Why is general science important?

General science provides a broad understanding of natural phenomena, forming the basis for specialized scientific fields. It helps explain the workings of the universe, facilitates technological advancements, and guides our understanding of the world around us.

3. What are some examples of branches in general science?

General science encompasses diverse branches such as physics (study of matter, energy, and forces), chemistry (study of substances and their properties), biology (study of living organisms), earth sciences (study of Earth’s processes), and astronomy (study of celestial objects).

4. How does general science impact everyday life?

General science influences various aspects of daily life, from technology advancements (like smartphones and medical devices) to healthcare (development of medicines and treatments) and environmental conservation (understanding climate change and ecosystems).

5. How does general science contribute to technological advancements?

General science drives technological innovations by providing the scientific principles necessary for the development of new technologies, materials, tools, and methodologies across various industries and sectors.

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