General Awareness · Science General
Inventors and Scientific Discoveries
4,616 Questions
This hub provides questions related to great inventors and their scientific discoveries. It covers the inventors of the telephone, radio, and microchips, alongside Nobel Prize winners. These facts are crucial for the general awareness section of major competitive exams.
Famous inventionsNobel Prize winnersScientific conceptsKey inventors
Inventors and Scientific Discoveries Questions
-
Gregory
-
Melchers
-
Lysenko
-
Purvis
C
Correct answer
Explanation
The term vernalization, which refers to the induction of flowering by exposure to prolonged cold, was coined by the Russian scientist T.D. Lysenko.
-
Penelope Ashe
-
Mahatma Gandhi
-
Charles Darwin
B
Correct answer
Explanation
The Story of My Experiments with Truth is the autobiography of Mahatma Gandhi, covering his life from childhood through 1921.
-
Engler and Prantl
-
Wallace
-
Carolus Linnaeus
-
Darwin
C
Correct answer
Explanation
Systema Naturae was one of the major works of the Swedish botanist, zoologist and physician Carolus Linnaeus and introduced the Linnaean taxonomy.
-
Stanely Miller
-
Harold Urey
-
Sydney Fox
-
Oparin
D
Correct answer
Explanation
The term "coacervate" is sometimes used to refer to spherical aggregates of colloidal droplets held together by hydrophobic forces.The process of coacervation was famously proposed by Alexander Oparin and J. B. S. Haldane as crucial in his early theory of abiogenesis .
-
Lamarck-Inheritance of acquired characters
-
Wiesmann-Germplasm theory
-
Alfred Russel Wallace-Special creation theory
-
Charles Darwin-Natural selection
C
Correct answer
Explanation
Alfred Russel Wallace (1823-1913) was one of the nineteenth century’s leading naturalists and explorers. He co-discovered with Charles Darwin the theory of evolution by natural selection, and he is one of the founders of the modern field of biogeography.
-
Lamarck
-
Haeckel
-
Darwin
-
Robert Hooke
B
Correct answer
Explanation
Since early in the twentieth century, Haeckel's "biogenetic law" has been refuted on many fronts. Haeckel formulated his theory as "Ontogeny recapitulates phylogeny".
-
Charles Darwin
-
Herbert Sponcer
-
Malthus
-
Lyell
A
Correct answer
Explanation
Charles Darwin suggested that “survival of the fittest” was the basis for organic evolution (the change of living things with time). Evolution itself is a biological phenomenon common to all living things, even though it has led to their differences.
-
Beilstein
-
Balard
-
Berg
-
Bergius
B
Correct answer
Explanation
Balard was a French chemist , who isolated and identified, the element bromine. He was conducting a general investigation of seawater, when he found the previously unknown element, in seaweed and several marine animals.
-
Humphry Davy
-
Balard
-
Barton
-
Berg
A
Correct answer
Explanation
Building on Volta's concepts, English chemist Humphry Davy, first produced sodium, from the electrolysis of molten sodium hydroxide, in 1807. Subsequently, Davy isolated potassium, another alkali metal, from potassium hydroxide in the same year. Lithium was discovered in 1817.
-
Acheson
-
Barton
-
Balard
-
Beilstein
A
Correct answer
Explanation
Acheson was an American chemist, who invented the process, to create carborundum. Carborundum is also known as silicon carbide, and is used, as an abrasive, semiconductor material and ceramic additive. Acheson received 70 patents related, to the use and production of silicon carbide.
-
Jennings
-
Karl Marx
-
Landsteiner
-
Pantin and Mast
C
Correct answer
Explanation
Karl Landsteiner discovered the main human blood groups (ABO system) in 1900, for which he later received the Nobel Prize.
-
Pascal Calculator
-
Abacus
-
Napier's Bones
-
Leibnitz's Machine
-
None of these
B
Correct answer
Explanation
Option 2 is the correct answer.
-
R.Brown
-
Virchow
-
Schwan
-
Purkinje
D
Correct answer
Explanation
The term 'protoplasm' was coined by Jan Evangelista Purkinje in 1839.
-
Schieiden
-
Leeuwenhoek
-
Hooke
-
Jansson
C
Correct answer
Explanation
Robert Hooke was the first scientist to discover cell in the cork of a plant.
-
Roentgen
-
Graham Bell
-
Marie Curie
-
Advil Federer
A
Correct answer
Explanation
Wilhelm Conrad Roentgen discovered X-rays in 1895. He was awarded the first Nobel Prize in Physics for this discovery.