CHEM2 Chemistry in Your World 2nd Edition by John L. Hogg - Test Bank

MULTIPLE CHOICE

     1.   Which activity comes first in the scientific method?

a.	conclusion
b.	hypothesis
c.	experimentation
d.	observation

ANS:  D                  

     2.   Which is considered a physical science?

a.	physics
b.	biology
c.	zoology
d.	botany

ANS:  A                  

     3.   A scientist is trying to make a new insecticide that will be more toxic to flies, but less toxic to humans than insecticides now available. The scientist is engaged in

a.	basic research.
b.	applied research.
c.	technology.
d.	serendipity.

ANS:  B                   

     4.   Which technology described in this chapter required the most time from idea to use?

a.	photography
b.	nylon
c.	roll-on deodorant
d.	X-rays in medicine

ANS:  D                  

     5.   The discovery of Teflon® was

a.	an example of planned research.
b.	accidental
c.	eventually damaging to the ozone layer.
d.	deemed useless by the discoverer's company.

ANS:  B                   

     6.   Which of the following are linked to the release of CFCs?

a.	"ozone holes" in the stratosphere
b.	increased air pollution
c.	drinking water pollution
d.	increased food spoilage

ANS:  A                  

     7.   An endeavor to provide an "ample margin of safety" to protect the public is an example of a

a.	technology-based law.
b.	balancing law.
c.	risk management.
d.	risk-based laws.

ANS:  A                  

     8.   What is the approximate population of the world?

a.	6,000,000 people
b.	about 3 billion people
c.	over 6,000,000,000 people
d.	2,000,000 people

ANS:  C                   

     9.   Chemistry is often defined as the study of

a.	matter and the changes it can undergo.
b.	naturally occurring matter.
c.	fundamental particles in research labs.
d.	synthetically produced matter.

ANS:  A                  

   10.   Refrigeration has been used since the late 1800s and early refrigerants were

a.	safe.
b.	flammable and toxic.
c.	inert.
d.	fluorine compounds, CFCs.

ANS:  B                   

   11.   The map of the complete human DNA sequence was

a.	completed in 1990.
b.	done exclusively in not-for-profit research labs.
c.	completed exclusively in for-profit research labs.
d.	completed in 2003.

ANS:  D                  

   12.   Which of the following explorations could be enhanced by our knowledge of DNA?

a.	development of drug to cure cancer
b.	use of genetically modified food to produce edible vaccines
c.	determine if a convicted felon is actually innocent
d.	all of these

ANS:  D