+1-315-636-4485
+91 98151-74050 
This set of MCQs helps you brush up on important chemistry topics and prepare you to dive into skill practice.
Which of the following is the philosopher credited with coining the term "atom"?
Aristotle
Democritus
Socrates
Plato
What is the name of the scientist credited with reviving Democritus' ideas regarding matter and atoms?
John Smith
John Adams
John Daltons
John Jacob
Which of the following philosophers supplanted the correct theory of matter with his own, stating that there are only four elements: earth, air, fire, and water?
Aristotle
Plato
Socrates
Democritus
A cathode ray is a beam of electrons. The cathode ray is the earliest known precursor to television. What is the name of the British scientist credited with discovering cathode rays?
James Chadwick
Ernest Rutherford
William Crookes
Robert Millikan
Which scientist used the cathode ray tube to isolate the electron in 1897?
Niels Bohr
Ernest Rutherford
Robert Millikan
J.J. Thomson
Name the scientist that developed what is known as the "planetary model" of the atom?
William Crookes
Williams Chadwick
Niels Bohr
Ernest Rutherford
Didn’t believe in atoms, believed in the continuous matter.
Ernest Rutherford
Aristotle
William Crookes
Adams
Who introduced quantitative measurements to the laboratory.
J.J. Thomson
John Adams
John Dalton
Antoine-Laurent Lavoisier
