Top 50 Science GK Questions and Answers Part 1st

Top 50 Science GK Questions and Answers in English

50 Science Related General Knowledge Questions with Answer

(1) What is the chemical symbol for gold?
a) Go
b) Gd
c) Au
d) Ag
Answer: c) Au

(2) Which planet is known as the “Red Planet”?
a) Venus
b) Mars
c) Jupiter
d) Saturn
Answer: b) Mars

(3) What is the smallest particle of an element that retains its chemical properties?
a) Atom
b) Molecule
c) Proton
d) Electron
Answer: a) Atom

(4) Who is known as the father of modern physics?
a) Isaac Newton
b) Albert Einstein
c) Galileo Galilei
d) Stephen Hawking
Answer: b) Albert Einstein

(5) What is the chemical formula for water?
a) CO2
b) H2O
c) NaCl
d) CH4
Answer: b) H2O

(6) Which gas do plants absorb from the atmosphere during photosynthesis?
a) Oxygen
b) Carbon dioxide
c) Hydrogen
d) Nitrogen
Answer: b) Carbon dioxide

(7) What is the largest organ in the human body?
a) Heart
b) Brain
c) Skin
d) Liver
Answer: c) Skin

(8) Which gas makes up the majority of Earth’s atmosphere?
a) Oxygen
b) Carbon dioxide
c) Nitrogen
d) Hydrogen
Answer: c) Nitrogen

(9) Who is credited with the discovery of penicillin, the first antibiotic?
a) Alexander Fleming
b) Louis Pasteur
c) Jonas Salk
d) Marie Curie
Answer: a) Alexander Fleming

(10) What is the chemical symbol for iron?
a) Fe
b) I
c) Ir
d) In
Answer: a) Fe

(11) Which planet is known for its beautiful rings?
a) Earth
b) Mars
c) Jupiter
d) Saturn
Answer: d) Saturn

(12) What is the process by which plants make their own food using sunlight?
a) Respiration
b) Digestion
c) Photosynthesis
d) Fermentation
Answer: c) Photosynthesis

(13) Who is known for formulating the laws of motion and universal gravitation?
a) Albert Einstein
b) Isaac Newton
c) Galileo Galilei
d) Stephen Hawking
Answer: b) Isaac Newton

(14) What is the chemical symbol for helium?
a) H
b) He
c) Hi
d) Ho
Answer: b) He

(15) What is the hardest naturally occurring substance on Earth?
a) Iron
b) Diamond
c) Gold
d) Silver
Answer: b) Diamond

(16) Which gas do humans exhale when they breathe out?
a) Oxygen
b) Carbon dioxide
c) Nitrogen
d) Hydrogen
Answer: b) Carbon dioxide

(17) Who is known for developing the theory of relativity?
a) Isaac Newton
b) Albert Einstein
c) Galileo Galilei
d) Stephen Hawking
Answer: b) Albert Einstein

(18) What is the chemical symbol for silver?
a) Si
b) Sr
c) Ag
d) Sn
Answer: c) Ag

(19) Which element is the most abundant in the Earth’s crust?
a) Iron
b) Silicon
c) Aluminum
d) Calcium
Answer: b) Silicon

(20) What is the process by which plants release water vapor into the atmosphere?
a) Respiration
b) Transpiration
c) Evaporation
d) Condensation
Answer: b) Transpiration

(21) Which gas is responsible for the blue color of the Earth’s sky?
a) Oxygen
b) Nitrogen
c) Carbon dioxide
d) Ozone
Answer: b) Nitrogen

(22) What is the chemical symbol for potassium?
a) K
b) Po
c) Pt
d) Pb
Answer: a) K

(23) Which of the following is a noble gas?
a) Oxygen
b) Neon
c) Chlorine
d) Hydrogen
Answer: b) Neon

(24) What is the chemical formula for table salt?
a) H2O
b) CO2
c) NaCl
d) CH4
Answer: c) NaCl

(25) Who is known for the discovery of the X-rays?
a) Wilhelm Conrad Roentgen
b) Marie Curie
c) Max Planck
d) Thomas Edison
Answer: a) Wilhelm Conrad Roentgen

(26) Which gas is used by plants during photosynthesis and is produced during respiration?
a) Oxygen
b) Carbon dioxide
c) Hydrogen
d) Nitrogen
Answer: a) Oxygen

(27) What is the chemical symbol for copper?
a) Cu
b) Co
c) Cp
d) Cn
Answer: a) Cu

(28) What is the process by which an organism changes over time in response to its environment?
a) Adaptation
b) Reproduction
c) Mutation
d) Photosynthesis
Answer: a) Adaptation

(29) Which gas is commonly used in balloons to make them float?
a) Oxygen
b) Carbon dioxide
c) Helium
d) Nitrogen
Answer: c) Helium

(30) Who is known for the discovery of radioactivity and the elements polonium and radium?
a) Albert Einstein
b) Marie Curie
c) Isaac Newton
d) Galileo Galilei
Answer: b) Marie Curie

(31) What is the chemical symbol for uranium?
a) U
b) Un
c) Ur
d) Ul
Answer: a) U

(32) Which force holds the nucleus of an atom together?
a) Gravity
b) Magnetism
c) Electromagnetic force
d) Strong nuclear force
Answer: d) Strong nuclear force

(33) Who is known for the development of the periodic table of elements?
a) Dmitri Mendeleev
b) Albert Einstein
c) Marie Curie
d) Ernest Rutherford
Answer: a) Dmitri Mendeleev

(34) What is the chemical symbol for lead?
a) L
b) Le
c) Lo
d) Pb
Answer: d) Pb

(35) Which gas is responsible for the “greenhouse effect” in the Earth’s atmosphere?
a) Oxygen
b) Carbon dioxide
c) Nitrogen
d) Ozone Answer: b) Carbon dioxide

(36) What is the chemical formula for methane, a greenhouse gas?
a) CO2
b) H2O
c) CH4
d) O3
Answer: c) CH4

(37) Who is known for the invention of the telephone?
a) Thomas Edison
b) Alexander Graham Bell
c) Nikola Tesla
d) Samuel Morse
Answer: b) Alexander Graham Bell

(38) What is the chemical symbol for silicon?
a) Si
b) So
c) Se
d) Sn
Answer: a) Si

(39) What is the largest planet in our Solar System?
a) Earth
b) Mars
c) Jupiter
d) Saturn
Answer: c) Jupiter

(40) What is the chemical symbol for neon?
a) N
b) No
c) Ne
d) Ni
Answer: c) Ne

(41) What is the process of converting a solid directly into a gas without going through the liquid phase called?
a) Melting
b) Boiling
c) Sublimation
d) Condensation
Answer: c) Sublimation

(42) Which element is commonly used in fluorescent lighting?
a) Mercury
b) Sodium
c) Potassium
d) Chromium
Answer: a) Mercury

(43) What is the chemical symbol for tin?
a) Ti
b) Ta
c) Te
d) Sn
Answer: d) Sn

(44) What is the chemical formula for glucose, a primary source of energy in the body?
a) C6H12O6
b) CO2
c) H2O
d) NaCl
Answer: a) C6H12O6

(45) Who is known for the discovery of the laws of heredity in genetics?
a) Charles Darwin
b) Gregor Mendel
c) Louis Pasteur
d) James Watson
Answer: b) Gregor Mendel

(46) What is the chemical symbol for mercury?
a) Hg
b) Me
c) Ma
d) Mn
Answer: a) Hg

(47) What is the process by which liquid water turns into vapor at the surface of the Earth?
a) Condensation
b) Evaporation
c) Sublimation
d) Precipitation
Answer: b) Evaporation

(48) Which gas is commonly used in fire extinguishers to displace oxygen and extinguish fires?
a) Oxygen
b) Carbon dioxide
c) Nitrogen
d) Argon
Answer: d) Argon

(49) What is the chemical symbol for cobalt?
a) Co
b) Cb
c) Cl
d) Cr
Answer: a) Co

(50) What is the chemical formula for sulfuric acid?
a) HCl
b) H2SO4
c) NaOH
d) CH3COOH
Answer: b) H2SO4

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These Questions Cover a wide range of Scientific topics and should help test your Knowledge of Basic Science concepts.