Saturday, May 22, 2010

Chemistry Quiz, Who would like to take this quiz?

Chemistry Quiz





1. The candela is one of the seven base units in the SI system. It measures:





A. power


B. luminous intensity


C. magnetism


D. combustion rate


E. luminance





2. Which element is the most powerful oxidizing agent?





A. oxygen


B. potassium


C. fluorine


D. chlorine


E. sodium





3. What is "butter of arsenic"?





A. yellow arsenic


B. poisoned butter


C. arsenous acid


D. pure white arsenic


E. arsenic trichloride





4. What intermolecular forces do geckos use to stick to walls and ceilings?





A. hydrogen bonding


B. quadrupole-quadrupole attractions


C. van der Waals forces


D. static ionic attractions


E. dipole-dipole attractions





5. What is the smallest mass ever measured directly by a weighing scale?





A. A 22 femtogram graphite speck


B. A 5 ng virus crystal


C. A 10 microgram bacterial cell


D. An electron





6. Which element can be drawn into thinner wires and hammered into thinner sheets than any other element?





A. Au


B. Cu


C. Mt


D. Na


E. Ag





7. Hypatia of Alexandria was one of the first well known teachers of science. One of her many inventions was:





A. the first weight scale


B. an apparatus for distilling water


C. papermaking


D. indigo dye





8. Many laboratory fires are caused by "flashback" that occurs when the vapors of flammable organic solvents come into contact with a burner or heater. Nearly all organic vapors are heavier than air and so flow along table top surfaces. Which of the following flammable vapors will NOT behave in this manner?





A. ethanol


B. carbon monoxide


C. diethyl ether


D. petroleum ether


E. butane





9. The candela is one of the seven base units in the SI system. It measures:





A. power


B. luminance


C. combustion rate


D. magnetism


E. luminous intensity





10. Which of the following natural poisons is the deadliest?





A. palytoxin carboxylic acid (from Hawaiian coral)


B. tetrodotoxin (from puffer fish)


C. coniine (from hemlock)


D. digitoxin (from foxglove)


E. strychnine (from strychnos plant extract)


F. batrachotoxin (from poison arrow frogs)

Chemistry Quiz, Who would like to take this quiz?
1.B


2.B


3.E


4.C


5.B


6.B


7.A not sure


8.E


9.E


10.F


hope i am right......
Reply:1 b


2 d


3 a


4 b not sure haha


5 d


6 b


7 d


8 d


9 b


10 f
Reply:too easy





1 b


2 d


3 a


4 b


5 d


6 b


7 d


8 d


9 b


10 f

cyclamen

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