1. Who is known for the discovery of the periodic law and the creation of the periodic table?

a. Dmitri Mendeleev
b. Antoine Lavoisier
c. John Dalton
d. Robert Boyle

2. Which scientist is credited with the discovery of the electron

a. Ernest Rutherford
b. Niels Bohr
c. J.J. Thomson
d. Marie Curie

3. Who developed the first modern atomic theory

a. Antoine Lavoisier
b. John Dalton
c. Gilbert Lewis
d. Linus Pauling

4. Who is famous for the discovery of radioactivity

a. Albert Einstein
b. Marie Curie
c. Ernest Rutherford
d. James Chadwick

5. Which scientist is known for the discovery of the neutron

a. Niels Bohr
b. James Chadwick
c. Ernest Rutherford
d. Linus Pauling

6. Who proposed the theory of chemical reactions involving the rearrangement of electrons in atoms

a. Gilbert Lewis
b. Linus Pauling
c. Robert H. Grubbs
d. Richard R. Schrock

7. Who is known for his work on the nature of chemical bonds and the concept of hybridization?

a. Linus Pauling
b. Robert H. Grubbs
c. Gilbert Lewis
d. Marie Curie

8. Which chemist is known for his work on the concept of oxidation states and the development of valence bond theory

a. Robert H. Grubbs
b. Linus Pauling
c. Gilbert Lewis
d. Rutherford

9. Who is known for the discovery of the structure of DNA?

a. James Watson and Francis Crick
b. Maurice Wilkins
c. Dandord Joseph
d. George Richard

10. Who is known for the discovery of the first synthetic dye and the development of organic chemistry

a. William Henry Perkin
b. August Kekulé
c. Robert H. Grubbs
d. Austin Marter