Inventions and Discoveries MCQs

Static General Knowledge

Inventions and Discoveries MCQs

Practice Inventions and Discoveries MCQs with answers and detailed explanations covering famous inventors, scientific discoveries, technological innovations, important inventions, groundbreaking research, Nobel-winning discoveries and contributions to science and technology frequently asked in SSC, Railway, Banking, UPSC, JKSSB, Police, Defence, Teaching and other competitive examinations.

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Question #1
Who discovered the phenomenon of radioactivity in 1896?
A. Henri Becquerel
B. Ernest Rutherford
C. Wilhelm Röntgen
D. Marie Curie
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Correct Answer: Option A

Explanation:
Henri Becquerel discovered radioactivity in 1896 while working with uranium salts, for which he shared the 1903 Nobel Prize in Physics.
This question belongs to: Static General Knowledge Inventions and Discoveries
Question #2
The electron was discovered in 1897 by which of the following physicists?
A. J.J. Thomson
B. Ernest Rutherford
C. John Dalton
D. James Chadwick
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Correct Answer: Option A

Explanation:
J.J. Thomson discovered the electron through his experiments with cathode ray tubes in 1897.
This question belongs to: Static General Knowledge Inventions and Discoveries
Question #3
Who is credited with the invention of the World Wide Web (WWW) in 1989?
A. Alan Turing
B. Tim Berners-Lee
C. Vint Cerf
D. Bill Gates
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Correct Answer: Option B

Explanation:
Tim Berners-Lee invented the World Wide Web in 1989 while working at CERN.
This question belongs to: Static General Knowledge Inventions and Discoveries
Question #4
The X-ray was discovered in 1895 by which Nobel laureate?
A. Albert Einstein
B. Niels Bohr
C. Wilhelm Röntgen
D. Max Planck
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Correct Answer: Option C

Explanation:
Wilhelm Röntgen discovered X-rays in 1895 and received the first-ever Nobel Prize in Physics in 1901.
This question belongs to: Static General Knowledge Inventions and Discoveries
Question #5
Who developed the first successful polio vaccine in 1955?
A. Albert Sabin
B. Louis Pasteur
C. Jonas Salk
D. Edward Jenner
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Correct Answer: Option C

Explanation:
Jonas Salk developed the first successful inactivated polio vaccine (IPV) in 1955, while Albert Sabin later developed the oral polio vaccine.
This question belongs to: Static General Knowledge Inventions and Discoveries
Question #6
Alexander Fleming discovered penicillin, the world's first effective antibiotic, in which year?
A. 1942
B. 1918
C. 1935
D. 1928
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Correct Answer: Option D

Explanation:
Sir Alexander Fleming discovered penicillin in 1928 at St. Mary's Hospital, London, after noticing a mold contaminating a petridish of staphylococci.
This question belongs to: Static General Knowledge Inventions and Discoveries
Question #7
Who formulated the Laws of Planetary Motion?
A. Nicolaus Copernicus
B. Johannes Kepler
C. Isaac Newton
D. Galileo Galilei
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Correct Answer: Option B

Explanation:
Johannes Kepler formulated the three laws of planetary motion in the early 17th century.
This question belongs to: Static General Knowledge Inventions and Discoveries
Question #8
The periodic table of elements was first proposed in its widely recognized chronological form by whom?
A. John Newlands
B. Antoine Lavoisier
C. Dmitri Mendeleev
D. Henry Moseley
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Correct Answer: Option C

Explanation:
Dmitri Mendeleev published the first widely recognized periodic table in 1869, arranging elements by atomic mass.
This question belongs to: Static General Knowledge Inventions and Discoveries
Question #9
Who invented the safety elevator in 1852, which prevented the cab from falling if the cable broke?
A. Henry Bessemer
B. James Watt
C. Elisha Otis
D. Thomas Edison
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Correct Answer: Option C

Explanation:
Elisha Otis invented the elevator safety brake in 1852, making skyscrapers practical and safe.
This question belongs to: Static General Knowledge Inventions and Discoveries
Question #10
The blood group system (A, B, O) was discovered by which scientist?
A. William Harvey
B. Karl Landsteiner
C. Robert Koch
D. Edward Jenner
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Correct Answer: Option B

Explanation:
Karl Landsteiner discovered the ABO blood groups in 1900, for which he received the Nobel Prize in Physiology or Medicine in 1930.
This question belongs to: Static General Knowledge Inventions and Discoveries
Question #11
Who discovered the neutron in the year 1932?
A. James Chadwick
B. Ernest Rutherford
C. J.J. Thomson
D. Niels Bohr
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Correct Answer: Option A

Explanation:
James Chadwick discovered the neutron in 1932, proving its existence as a neutral particle in the nucleus.
This question belongs to: Static General Knowledge Inventions and Discoveries
Question #12
The invention of the dynamite is credited to which Swedish chemist?
A. Carl Wilhelm Scheele
B. Alfred Nobel
C. Jöns Jacob Berzelius
D. Svante Arrhenius
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Correct Answer: Option B

Explanation:
Alfred Nobel invented dynamite in 1867, and later used his enormous fortune to institute the Nobel Prizes.
This question belongs to: Static General Knowledge Inventions and Discoveries
Question #13
Who discovered insulin, saving millions of lives affected by diabetes?
A. Frederick Banting and Charles Best
B. Alexander Fleming
C. Edward Jenner
D. Robert Koch
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Correct Answer: Option A

Explanation:
Sir Frederick Banting, along with Charles Best and John Macleod, isolated insulin in 1921-1922.
This question belongs to: Static General Knowledge Inventions and Discoveries
Question #14
Who invented the mercury thermometer in 1714?
A. Anders Celsius
B. Daniel Gabriel Fahrenheit
C. Galileo Galilei
D. Lord Kelvin
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Correct Answer: Option B

Explanation:
Daniel Gabriel Fahrenheit invented the mercury-in-glass thermometer in 1714 and developed the Fahrenheit scale.
This question belongs to: Static General Knowledge Inventions and Discoveries
Question #15
The structure of DNA was discovered in 1953 by James Watson and Francis Crick with the crucial aid of data from whom?
A. Marie Curie
B. Rosalind Franklin
C. Dorothy Hodgkin
D. Barbara McClintock
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Correct Answer: Option B

Explanation:
Rosalind Franklin's X-ray diffraction images (particularly Photo 51) were key to identifying the double-helix structure of DNA.
This question belongs to: Static General Knowledge Inventions and Discoveries
Question #16
Who invented the lightning rod and bifocal lenses?
A. Nikola Tesla
B. Thomas Edison
C. Michael Faraday
D. Benjamin Franklin
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Correct Answer: Option D

Explanation:
Benjamin Franklin invented the lightning rod, bifocal spectacles, and the Franklin stove.
This question belongs to: Static General Knowledge Inventions and Discoveries
Question #17
Who discovered circulation of blood in the human body?
A. Andreas Vesalius
B. William Harvey
C. Robert Hooke
D. Karl Landsteiner
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Correct Answer: Option B

Explanation:
William Harvey was an English physician who correctly described the systemic circulation and properties of blood being pumped to the brain and body by the heart.
This question belongs to: Static General Knowledge Inventions and Discoveries
Question #18
The cell was first discovered and named by whom in 1665?
A. Anton van Leeuwenhoek
B. Matthias Schleiden
C. Theodor Schwann
D. Robert Hooke
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Correct Answer: Option D

Explanation:
Robert Hooke discovered plant cells in cork tissue under a primitive microscope in 1665 and coined the term 'cell'.
This question belongs to: Static General Knowledge Inventions and Discoveries
Question #19
Who invented the first working internal combustion engine powered by gasoline?
A. Rudolf Diesel
B. Henry Ford
C. Nikolaus Otto
D. Karl Benz
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Correct Answer: Option D

Explanation:
Karl Benz is widely acknowledged as the inventor of the modern gasoline-powered automobile (1885/1886) using an internal combustion engine.
This question belongs to: Static General Knowledge Inventions and Discoveries
Question #20
Who discovered the law of hereditary transmission through experiments on pea plants?
A. Jean-Baptiste Lamarck
B. Charles Darwin
C. Thomas Hunt Morgan
D. Gregor Mendel
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Correct Answer: Option D

Explanation:
Gregor Mendel is known as the father of modern genetics for his discovery of the basic laws of heredity through breeding pea plants.
This question belongs to: Static General Knowledge Inventions and Discoveries

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