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Important Discoveries In Chemistry-for Competitive Exams

Important Discoveries in Chemistry-for Competitive Exams

Chemistry topic- “Important Discoveries in Chemistry-रसायन विज्ञान की महत्वपूर्ण खोजें”, is important for all competitive exams like CET- Common eligibility Test, SSC CGL, SSC CHSL, RRB NTPC, UPSC and for other state civil services exams. In these exams, almost 4-5 questions are coming from Chemistry. Let’s start the topic – Important Discoveries in Chemistry:-

Discoveries in Chemistry:-

(रसायन विज्ञान की महत्वपूर्ण खोजें)

There is a list of significant and famous discoveries in chemistry. A scientist explores the nature of the universe. Our curiosity for knowledge, is the drive behind all the discoveries. There are numerous scientific discoveries that influenced the way we think and live.

“Chemistry is the branch of science that deals with the composition, structure and properties of matter and also how and why matter undergoes certain changes”.

Discovery in Chemistry plays an important role in chemical industries for manufacturing fertilizers such as urea, calcium superphosphate, sodium nitrate, and Ammonium Sulphate. These chemicals have helped greatly in increasing the yield of fruits, vegetables, and other crops.

Discovery in Chemistry field also improved the quality of our life. Chemistry in our everyday life provide us acids, salts, dyes, polymers, drugs, soaps, detergents, metals, alloys and other inorganic and organic chemicals

 Discoveries in Chemistry for Competitive Exams

NAME OF DISCOVERY YEAR OF DISCOVERY    SCIENTIEST NAME
Atom

1808

John Dalton
Electron

1897

Electron
Proton

1919

Ernest Rutherford
Neutron

1932

James Chadwick
Photon

1905

Albert Einstein
Radioactivity

1896

Antoine Henri Becquerel
Atomic Structure

1913

Neil Bohr & Rutherford
Nucleus

1911

Ernest Rutherford
Meson

1935

Yukawa Hideki
Positron

1932

Carl Anderson
Nuclear fission

1938

Lise Meitner, Otto Robert Frisch, Otto Hahn and Fritz Strassmann.
RDX

1898

Georg Friedrich Henning
Molecules

Avogadro
Helium

1868

William Ramsay
Neon Lamp

1915

Georges Claude

Oxygen

1775

Antoine Laurent Lavoisier
Ozone

1839

Christian Schonbein
Air is the mixture of gases

Antoine Laurent Lavoisier
Old-Periodic Table   

1869

Dmitri Mendeleev
Modern periodic table

1913

Henry Gwyn-Jeffreys Moseley(Moseley)
Atomic number

1910

Henry Gwyn-Jeffreys Moseley(Moseley)

Penicillin

1928

Alexander Fleming
Diesel Engine   1892 Rudolf Diesel               
Centigrade Scale

1742

Anders Celsius       
Chlorine

1774

Karl Wilhelm Scheele       

Dynamite

1867

Alfred B. Nobel                  
Atom Bomb

1945

Julius Robert Oppenheimer

Hydrogen

1766

Henry Cavendish
Laser

1960

Dr. Charles H. Townes          and

Arthur Leonard Schawlow

Light Bulb

1854

Heinrich Goebel
Radium

1898

Marie & Pierre Curie
Radar 1922 Dr. Albert H. Taylor & Leo C. Young
Rubber (vulcanized)

1841

Charles Goodyear
Rubber Tyre

1887

John Dunlop

Rocket Engine

1926

Robert H. Goddard

Radio

1894

Guglielmo Marconi
Richter Scale

1935

Charles Richter
Thermometer

1593

Galileo

X-ray

1895

Wilhelm Conrad Roentgen
Artificial radioactivity

1934

Irene Joliot-Curie and Frederic Joliot-Curie.
U.V. rays

1801

Johann Wilhelm Ritter.
Electron microscope

1931

Max Knoll and Ernst Ruska

Nuclear reactor

1942

Enrico Fermi

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