Science Bowl CHEMISTRY
CHEM-91; Multiple Choice: Which of the following scientists was awarded the Nobel Prize in
1911 for the discovery of the radioactive elements, radium and polonium?
w) John Dalton
x) Dmitri Mendeleev
y) Emil Fischer
z) Marie Curie
ANSWER: Z -- MARIE CURIE
CHEM-91; Short Answer: Who was awarded a Nobel Prize in 1911 for the discovery of the
radioactive elements, radium and polonium?
ANSWER: D -- MARIE CURIE
CHEM-91; Multiple Choice: Which of the following pairs of German scientists discovered the
atomic fission of uranium and set the stage for the nuclear age?
w) Hahn and Strassman
x) Nernst and Planck
y) Ostwald and Heisenberg
z) Bohr and Rutherford
ANSWER: W -- HAHN AND STRASSMAN
CHEM-91; Multiple Choice: Name the person who developed a table of elements which revealed
regularities in elemental properties in 1869?
w) Theodore Richards
x) Antoine Lavoisier
y) Dmitri Mendeleev
z) Svante Arrhenius
ANSWER: Y -- DMITRI MENDELEEV
CHEM-91; Short Answer: Name the person who developed a table of elements which revealed
regularities in elemental properties?
ANSWER: DMITRI MENDELEEV
Chemisty - 1
,Science Bowl CHEMISTRY
CHEM-91; Multiple Choice: Who was the first American chemist to receive a Nobel Prize? He
was selected in 1914 for his precise determination of atomic weights.
w) Edward Frankland
x) Theodore Richards
y) John Bardeen
z) Paul Dirac
ANSWER: X -- THEODORE RICHARDS
CHEM-91; Multiple Choice: How many electrons can occupy an s orbital?
w) one
x) two
y) three
z) four
ANSWER: X -- TWO
CHEM-91; Short Answer: What is the maximum number of electrons that can occupy an s
orbital?
ANSWER: TWO
CHEM-91; Multiple Choice: Which of the following is a necessary characteristic for electrons that
share an s orbital?
w) coplanar spins
x) parallel spins
y) opposite spins
z) none of these
ANSWER: Y -- OPPOSITE SPINS
CHEM-91; Multiple Choice: Which of the following terms refers to the number of molecules or
ions attached to a central metallic atom?
w) coordination number
x) connection number
y) bonding number
z) none of these
ANSWER: W -- COORDINATION NUMBER
Chemisty - 2
,Science Bowl CHEMISTRY
CHEM-91; Multiple Choice: Which of the following pairs do NOT show similar chemical
properties?
w) fluorine-argon
x) beryllium-aluminum
y) boron-silicon
z) lithium-magnesium
ANSWER: W -- FLUORINE-ARGON
CHEM-91; Short Answer: What is the common name for calcium oxide, CaO?
ANSWER: QUICKLIME (LIME)
CHEM-91; Multiple Choice: Which of the following terms refers to a material which slows
neutrons?
w) retarder
x) moderator
y) buffer
z) bottleneck
ANSWER: X -- MODERATOR
CHEM-91; Multiple Choice: Which of the following refers to the scattering of light by colloidal
particles?
w) Rutherford effect
x) Tyndall effect (pron: tin-dahl)
y) Thompson effect
z) none of these
ANSWER: X -- TYNDALL EFFECT
CHEM-91; Short Answer: Who is accredited in the history of modern chemistry of proving that
neutrons existed?
ANSWER: JAMES CHADWICK
Chemisty - 3
, Science Bowl CHEMISTRY
CHEM-91; Multiple Choice: Which of the following refers to an easily melted product of the
reaction between the flux and the impurities of an ore?
w) slag
x) slurry
y) slug
z) none of the above
ANSWER: W -- SLAG
CHEM-91; Short Answer: Name the thermodynamic state function that is a measure of
randomness.
ANSWER: ENTROPY
CHEM-91; Short Answer: What term is used to describe silver which contains 7.5% copper?
ANSWER: STERLING
CHEM-91; Short Answer: Name the state function that represents the heat content of a system.
ANSWER: ENTHALPY
CHEM-91; Multiple Choice: Which of the following is NOT a physical property of crystalline
boron?
w) brown color
x) diamond hardness
y) brittleness
z) high electrical resistance
ANSWER: W -- BROWN COLOR (Crystalline boron is transparent.)
CHEM-91; Multiple Choice: Which noble gas has the highest melting point ?
w) argon
x) krypton
y) xenon
z) radon
ANSWER: Z -- RADON
Chemisty - 4
CHEM-91; Multiple Choice: Which of the following scientists was awarded the Nobel Prize in
1911 for the discovery of the radioactive elements, radium and polonium?
w) John Dalton
x) Dmitri Mendeleev
y) Emil Fischer
z) Marie Curie
ANSWER: Z -- MARIE CURIE
CHEM-91; Short Answer: Who was awarded a Nobel Prize in 1911 for the discovery of the
radioactive elements, radium and polonium?
ANSWER: D -- MARIE CURIE
CHEM-91; Multiple Choice: Which of the following pairs of German scientists discovered the
atomic fission of uranium and set the stage for the nuclear age?
w) Hahn and Strassman
x) Nernst and Planck
y) Ostwald and Heisenberg
z) Bohr and Rutherford
ANSWER: W -- HAHN AND STRASSMAN
CHEM-91; Multiple Choice: Name the person who developed a table of elements which revealed
regularities in elemental properties in 1869?
w) Theodore Richards
x) Antoine Lavoisier
y) Dmitri Mendeleev
z) Svante Arrhenius
ANSWER: Y -- DMITRI MENDELEEV
CHEM-91; Short Answer: Name the person who developed a table of elements which revealed
regularities in elemental properties?
ANSWER: DMITRI MENDELEEV
Chemisty - 1
,Science Bowl CHEMISTRY
CHEM-91; Multiple Choice: Who was the first American chemist to receive a Nobel Prize? He
was selected in 1914 for his precise determination of atomic weights.
w) Edward Frankland
x) Theodore Richards
y) John Bardeen
z) Paul Dirac
ANSWER: X -- THEODORE RICHARDS
CHEM-91; Multiple Choice: How many electrons can occupy an s orbital?
w) one
x) two
y) three
z) four
ANSWER: X -- TWO
CHEM-91; Short Answer: What is the maximum number of electrons that can occupy an s
orbital?
ANSWER: TWO
CHEM-91; Multiple Choice: Which of the following is a necessary characteristic for electrons that
share an s orbital?
w) coplanar spins
x) parallel spins
y) opposite spins
z) none of these
ANSWER: Y -- OPPOSITE SPINS
CHEM-91; Multiple Choice: Which of the following terms refers to the number of molecules or
ions attached to a central metallic atom?
w) coordination number
x) connection number
y) bonding number
z) none of these
ANSWER: W -- COORDINATION NUMBER
Chemisty - 2
,Science Bowl CHEMISTRY
CHEM-91; Multiple Choice: Which of the following pairs do NOT show similar chemical
properties?
w) fluorine-argon
x) beryllium-aluminum
y) boron-silicon
z) lithium-magnesium
ANSWER: W -- FLUORINE-ARGON
CHEM-91; Short Answer: What is the common name for calcium oxide, CaO?
ANSWER: QUICKLIME (LIME)
CHEM-91; Multiple Choice: Which of the following terms refers to a material which slows
neutrons?
w) retarder
x) moderator
y) buffer
z) bottleneck
ANSWER: X -- MODERATOR
CHEM-91; Multiple Choice: Which of the following refers to the scattering of light by colloidal
particles?
w) Rutherford effect
x) Tyndall effect (pron: tin-dahl)
y) Thompson effect
z) none of these
ANSWER: X -- TYNDALL EFFECT
CHEM-91; Short Answer: Who is accredited in the history of modern chemistry of proving that
neutrons existed?
ANSWER: JAMES CHADWICK
Chemisty - 3
, Science Bowl CHEMISTRY
CHEM-91; Multiple Choice: Which of the following refers to an easily melted product of the
reaction between the flux and the impurities of an ore?
w) slag
x) slurry
y) slug
z) none of the above
ANSWER: W -- SLAG
CHEM-91; Short Answer: Name the thermodynamic state function that is a measure of
randomness.
ANSWER: ENTROPY
CHEM-91; Short Answer: What term is used to describe silver which contains 7.5% copper?
ANSWER: STERLING
CHEM-91; Short Answer: Name the state function that represents the heat content of a system.
ANSWER: ENTHALPY
CHEM-91; Multiple Choice: Which of the following is NOT a physical property of crystalline
boron?
w) brown color
x) diamond hardness
y) brittleness
z) high electrical resistance
ANSWER: W -- BROWN COLOR (Crystalline boron is transparent.)
CHEM-91; Multiple Choice: Which noble gas has the highest melting point ?
w) argon
x) krypton
y) xenon
z) radon
ANSWER: Z -- RADON
Chemisty - 4
