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

Multiple choice
  1. Gregory

  2. Melchers

  3. Lysenko

  4. Purvis

Reveal answer Fill a bubble to check yourself
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.

Multiple choice
  1. Penelope Ashe

  2. Mahatma Gandhi

  3. Charles Darwin

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The Story of My Experiments with Truth is the autobiography of Mahatma Gandhi, covering his life from childhood through 1921.

Multiple choice
  1. Engler and Prantl

  2. Wallace

  3. Carolus Linnaeus

  4. Darwin

Reveal answer Fill a bubble to check yourself
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.

Multiple choice
  1. Stanely Miller

  2. Harold Urey

  3. Sydney Fox

  4. Oparin

Reveal answer Fill a bubble to check yourself
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 .

Multiple choice
  1. Lamarck-Inheritance of acquired characters

  2. Wiesmann-Germplasm theory

  3. Alfred Russel Wallace-Special creation theory

  4. Charles Darwin-Natural selection

Reveal answer Fill a bubble to check yourself
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.

Multiple choice
  1. Charles Darwin

  2. Herbert Sponcer

  3. Malthus

  4. Lyell

Reveal answer Fill a bubble to check yourself
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.

Multiple choice
  1. Beilstein

  2. Balard

  3. Berg

  4. Bergius

Reveal answer Fill a bubble to check yourself
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.

Multiple choice
  1. Humphry Davy

  2. Balard

  3. Barton

  4. Berg

Reveal answer Fill a bubble to check yourself
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.

Multiple choice
  1. Acheson

  2. Barton

  3. Balard

  4. Beilstein

Reveal answer Fill a bubble to check yourself
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.

Multiple choice
  1. Jennings

  2. Karl Marx

  3. Landsteiner

  4. Pantin and Mast

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Karl Landsteiner discovered the main human blood groups (ABO system) in 1900, for which he later received the Nobel Prize.

Multiple choice
  1. Roentgen

  2. Graham Bell

  3. Marie Curie

  4. Advil Federer

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Wilhelm Conrad Roentgen discovered X-rays in 1895. He was awarded the first Nobel Prize in Physics for this discovery.