which of the following statement is correct

Which of the Following Statement Is Correct? Test Your Knowledge

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The phrase “which of the following statement is correct” is common in exams, quizzes, and scientific discussions. It tests your ability to identify accurate information from a set of options. Many people get confused by similar-sounding choices, leading to mistakes. Understanding how to approach these questions improves accuracy and logical thinking. This article covers a variety of science-based questions to help sharpen your knowledge. Whether you’re preparing for a test or just brushing up on facts, practicing these questions can make a big difference in how confidently you answer them.

Which Of The Following Statement Is Correct? Science Quiz Practice

which of the following statement is correct

1. Which of the following statement is correct?

  1. Velocity is a scalar quantity.
  2. Mass and weight are identical.
  3. Force and acceleration are unrelated.
  4. Acceleration occurs when velocity changes.

Answer: D

2. Which of the following statement is correct?

  1. Light travels slower than sound.
  2. Sound cannot travel through a vacuum.
  3. Refraction occurs only in gases.
  4. Radio waves have a shorter wavelength than gamma rays.

Answer: B

3. Which of the following statement is correct?

  1. Newton’s first law states that an object remains at rest or in uniform motion unless acted upon by an external force.
  2. An object in motion will stop without a force applied.
  3. Gravity does not affect objects in freefall.
  4. Work is independent of force and displacement.

Answer: A

4. Which of the following statement is correct?

  1. A convex lens diverges light rays.
  2. A concave mirror can produce a real image.
  3. The angle of incidence is always greater than the angle of reflection.
  4. Light does not change speed when moving from one medium to another.

Answer: B

5. Which of the following statement is correct?

  1. Energy cannot be created or destroyed but can change forms.
  2. Heat energy cannot be converted into mechanical energy.
  3. The first law of thermodynamics states that entropy always increases.
  4. The third law of thermodynamics states that absolute zero can be reached.

Answer: A

6. Which of the following statement is correct?

  1. Water is a compound composed of hydrogen and oxygen.
  2. Water is an element.
  3. Water molecules are held together by ionic bonds.
  4. Water has no role in chemical reactions.

Answer: A

7. Which of the following statement is correct?

  1. The atomic number of an element represents the number of neutrons.
  2. The atomic number is equal to the number of protons in an atom.
  3. All isotopes have the same mass number.
  4. Electrons contribute significantly to atomic mass.

Answer: B

8. Which of the following statement is correct?

  1. Acids have a pH greater than 7.
  2. Bases release hydroxide (OH⁻) ions in solution.
  3. Salts are formed only from strong acids.
  4. Oxidation is the gain of electrons.

Answer: B

9. Which of the following statement is correct?

  1. Covalent bonds involve electron transfer.
  2. Ionic bonds involve the transfer of electrons.
  3. Metals form covalent bonds.
  4. Hydrogen bonding occurs only in gases.

Answer: B

10. Which of the following statement is correct?

  1. The periodic table is arranged by increasing neutron number.
  2. Elements in the same group have similar chemical properties.
  3. The atomic number decreases across a period.
  4. Noble gases are highly reactive.

Answer: B

11. Which of the following statement is correct?

  1. DNA is only found in animals.
  2. DNA carries genetic information in most organisms.
  3. Mitochondria are found only in plant cells.
  4. Bacteria do not have genetic material.

Answer: B

12. Which of the following statement is correct?

  1. Enzymes speed up biochemical reactions without being consumed.
  2. Enzymes are used up during reactions.
  3. All enzymes work at the same pH.
  4. Enzymes slow down metabolic processes.

Answer: A

13. Which of the following statement is correct?

  1. White blood cells transport oxygen.
  2. The nervous system controls and coordinates body activities.
  3. The human heart has three chambers.
  4. Plants do not respire.

Answer: B

14. Which of the following statement is correct?

  1. Photosynthesis occurs in chloroplasts.
  2. Photosynthesis occurs only at night.
  3. Photosynthesis does not require sunlight.
  4. Carbon dioxide is released during photosynthesis.

Answer: A

15. Which of the following statement is correct?

  1. Antibiotics can kill viruses.
  2. Viruses are not considered living organisms.
  3. Fungi are autotrophic organisms.
  4. Only animals can get diseases.

Answer: B

16. Which of the following statement is correct?

  1. The greenhouse effect is caused by gases like CO₂ and methane trapping heat in Earth’s atmosphere.
  2. Global warming is a myth.
  3. Deforestation has no impact on climate change.
  4. Renewable energy sources contribute to pollution.

Answer: A

17. Which of the following statement is correct?

  1. The ozone layer is mainly composed of carbon dioxide.
  2. The ozone layer absorbs harmful ultraviolet radiation.
  3. Ozone depletion has no impact on human health.
  4. Ozone is a primary greenhouse gas.

Answer: B

18. Which of the following statement is correct?

  1. The Sun is primarily composed of hydrogen and helium.
  2. The Sun is a solid object.
  3. The Sun is cooler than Earth.
  4. The Sun’s energy is produced by chemical reactions.

Answer: A

19. Which of the following statement is correct?

  1. The Milky Way is the only galaxy in the universe.
  2. The Earth orbits the Sun in an elliptical path.
  3. Jupiter is the smallest planet in the Solar System.
  4. The Moon has its own light source.

Answer: B

20. Which of the following statement is correct?

  1. Black holes have gravity so strong that even light cannot escape.
  2. Black holes are completely empty spaces.
  3. The universe is shrinking.
  4. The Big Bang theory suggests the universe has always existed in its current state.

Answer: A

21. Which of the following statement is correct?

  1. A body in motion remains in motion unless acted upon by an external force.
  2. The mass of an object changes with location.
  3. The force of gravity is independent of mass.
  4. Energy cannot be transferred from one object to another.

Answer: A

22. Which of the following statement is correct?

  1. Kinetic energy depends only on mass.
  2. Kinetic energy depends on both mass and velocity.
  3. Potential energy exists only in living organisms.
  4. Sound energy cannot travel through solids.

Answer: B

23. Which of the following statement is correct?

  1. A charged particle at rest produces a magnetic field.
  2. Moving electric charges produce magnetic fields.
  3. Static electricity involves the movement of protons.
  4. A current-carrying wire does not produce a magnetic field.

Answer: B

24. Which of the following statement is correct?

  1. The faster an object moves, the more momentum it has.
  2. A heavier object will always fall faster than a lighter object in a vacuum.
  3. Momentum is a scalar quantity.
  4. The acceleration due to gravity is different for all objects on Earth.

Answer: A

25. Which of the following statement is correct?

  1. Sound travels faster in air than in water.
  2. Light waves require a medium to propagate.
  3. The speed of light is highest in a vacuum.
  4. All objects emit visible light.

Answer: 

26. Which of the following statement is correct?

  1. Noble gases are chemically stable due to their full outer electron shells.
  2. All elements in the periodic table react similarly.
  3. The atomic number of an element can change.
  4. A molecule of oxygen contains only one oxygen atom.

Answer: A

27. Which of the following statement is correct?

  1. The pH scale measures temperature.
  2. The pH scale measures the acidity or alkalinity of a solution.
  3. A neutral solution has a pH of 10.
  4. Acids and bases have the same properties.

Answer: B

28. Which of the following statement is correct?

  1. Elements in the same period of the periodic table have similar chemical properties.
  2. Elements in the same group have similar chemical properties.
  3. Metals are poor conductors of electricity.
  4. Covalent bonds are formed between metals.

Answer: B

29. Which of the following statement is correct?

  1. An increase in temperature always slows down a chemical reaction.
  2. A catalyst speeds up a chemical reaction without being consumed.
  3. Chemical reactions can only occur in the presence of oxygen.
  4. Ionic bonds form between two nonmetals.

Answer: B

30. Which of the following statement is correct?

  1. Metals are soft and have low melting points.
  2. Metals do not conduct heat.
  3. Most metals are malleable and good conductors of electricity.
  4. Metals gain electrons when forming compounds.

Answer: C

31. Which of the following statement is correct?

  1. The human body contains no microorganisms.
  2. The human body contains beneficial bacteria.
  3. All bacteria cause diseases.
  4. Viruses are classified as living organisms.

Answer: B

32. Which of the following statement is correct?

  1. DNA is only found in animal cells.
  2. DNA carries genetic information in most living organisms.
  3. RNA does not play a role in protein synthesis.
  4. Genes have no effect on traits.

Answer: B

33. Which of the following statement is correct?

  1. Plants produce oxygen only during the night.
  2. Photosynthesis converts carbon dioxide and water into glucose and oxygen.
  3. Only animals require oxygen to survive.
  4. Chloroplasts do not contain pigments.

Answer: B

34. Which of the following statement is correct?

  1. The circulatory system transports oxygen, nutrients, and waste products.
  2. The heart is not an organ.
  3. The nervous system only functions during sleep.
  4. White blood cells do not play a role in immunity.

Answer: A

35. Which of the following statement is correct?

  1. Fungi are autotrophic organisms.
  2. Fungi obtain nutrients by decomposing organic material.
  3. Viruses can reproduce independently.
  4. Bacteria and fungi are identical organisms.

Answer: B

36. Which of the following statement is correct?

  1. Fossil fuels are renewable sources of energy.
  2. Solar energy is a renewable resource.
  3. Deforestation increases oxygen levels in the atmosphere.
  4. Greenhouse gases have no impact on climate.

Answer: B

37. Which of the following statement is correct?

  1. The ozone layer is primarily composed of carbon dioxide.
  2. The ozone layer protects Earth from harmful UV radiation.
  3. Ozone depletion has no environmental impact.
  4. Global warming is unrelated to human activities.

Answer: B

38. Which of the following statement is correct?

  1. The Milky Way is a spiral galaxy.
  2. Earth is the only planet in the universe.
  3. The Sun orbits around the Earth.
  4. The Moon produces its own light.

Answer: A

39. Which of the following statement is correct?

  1. The Sun is a planet.
  2. The Sun is a star composed mostly of hydrogen and helium.
  3. The Sun is cooler than the Earth’s core.
  4. The Sun’s energy comes from chemical reactions.

Answer: B

Wrapping Up

Practicing which of the following statement is correct questions is important for exams, quizzes, and scientific discussions. These questions test your ability to analyze information, compare facts, and choose the most accurate answer. By practicing a variety of science-based examples, you improve your reasoning skills and avoid common mistakes. Whether you’re studying physics, chemistry, biology, or environmental science, understanding this question format gives you an edge. Keep practicing, stay curious, and approach each question with a clear and logical mindset. The more you engage with such questions, the better your accuracy and confidence will become.