What is the chemical symbol for water?
The chemical symbol for water is H₂O.
Science and Technology MCQ
Science and Technology is the field that explores the systematic study of the structure and behavior of the physical and natural world through observation and experimentation, along with the application of scientific knowledge for practical purposes.
This MCQ quiz includes questions from various scientific disciplines such as physics, chemistry, biology, and computer science, as well as recent advancements, inventions, innovations, and their real-world applications in technology. It is useful for competitive exams and general awareness.
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Who invented the telephone?
Alexander Graham Bell is credited with inventing the telephone.
What is the powerhouse of the cell?
Mitochondria are known as the powerhouse of the cell.
What planet is known as the Red Planet?
Mars is known as the Red Planet due to its reddish appearance.
What is the speed of light?
The speed of light in a vacuum is approximately 299,792,458 meters per second.
Who developed the theory of relativity?
Albert Einstein developed the theory of relativity.
What is the chemical symbol for gold?
The chemical symbol for gold is Au.
What is the most abundant gas in the Earth's atmosphere?
Nitrogen makes up about 78% of the Earth's atmosphere.
What is the hardest natural substance on Earth?
Diamond is the hardest natural substance known on Earth.
What is the main component of the sun?
The sun is primarily composed of hydrogen.
What is the chemical symbol for sodium?
The chemical symbol for sodium is Na.
Who is known as the father of computers?
Charles Babbage is often referred to as the father of computers.
What is the most common element in the universe?
Hydrogen is the most common element in the universe.
What is the largest planet in our solar system?
Jupiter is the largest planet in our solar system.
What is the process by which plants make their food?
Plants make their food through photosynthesis.
What is the boiling point of water in degrees Celsius?
The boiling point of water is 100 degrees Celsius.
Who proposed the laws of motion?
Isaac Newton proposed the laws of motion.
What is the chemical formula for table salt?
The chemical formula for table salt is NaCl.
What is the center of an atom called?
The center of an atom is called the nucleus.
What is the chemical symbol for iron?
The chemical symbol for iron is Fe.
What is the most abundant element in the Earth's crust?
Oxygen is the most abundant element in the Earth's crust.
What is the common name for H₂O₂?
The common name for H₂O₂ is hydrogen peroxide.
What is the pH level of pure water?
The pH level of pure water is 7, which is neutral.
What is the primary gas found in the Earth's atmosphere?
Nitrogen is the primary gas found in the Earth's atmosphere.
What is the chemical symbol for potassium?
The chemical symbol for potassium is K.
What is the chemical formula for carbon dioxide?
The chemical formula for carbon dioxide is CO₂.
What is the chemical symbol for calcium?
The chemical symbol for calcium is Ca.
What is the chemical symbol for silver?
The chemical symbol for silver is Ag.
What is the chemical symbol for chlorine?
The chemical symbol for chlorine is Cl.