Tag: science & technology

Quizzes (551) Questions (11015)

Questions Related to science & technology

Multiple choice general knowledge science & technology

who discovered microbes in air?

  1. Robert Kooch

  2. Aristotle

  3. Louis Pasteur

  4. none of the above
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Louis Pasteur proved microbes existed in air through his swan-neck flask experiment (1859-1864), showing that microorganisms caused spoilage. Koch worked on germ theory and specific diseases, Aristotle lived before germ theory.

Multiple choice general knowledge science & technology

Who invented proton?

  1. JJ Thompson

  2. Ernest Rutherfold

  3. Chedwik

  4. Newton
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Ernest Rutherford discovered the proton in 1919 through nuclear experiments showing that nitrogen nuclei could be disintegrated by alpha particles, releasing hydrogen nuclei (protons). J.J. Thomson discovered the electron.

Multiple choice general knowledge science & technology

Who founded oracle?

  1. Bill Gates

  2. Larry Page

  3. Larry Ellison

  4. Steve Waznaik
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Larry Ellison co-founded Oracle Corporation (originally Software Development Laboratories) in 1977 with Bob Miner and Ed Oates. Bill Gates founded Microsoft, Larry Page co-founded Google, and Steve Wozniak co-founded Apple.

Multiple choice general knowledge science & technology

Which is the "King of chemicals"?

  1. Hydrochloric acid

  2. Sulphuric acid

  3. Hydrogen sulphide

  4. Nitric acid
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Sulphuric acid (H2SO4) is called the 'King of Chemicals' due to its enormous industrial importance - it's used in fertilizer production, petroleum refining, and chemical manufacturing. It has the highest production volume of any industrial chemical worldwide.