Science Home Product Information Site Map Search Contact Us   Glencoe Online
Quizzes Quiz
 
Chapter 10: Organic Chemistry

Practice Test
      
  1.What do alcohols, carboxylic acids, amines, and amino acids all have in common?  
  a.   All are substituted hydrocarbons.  
  b.   All contain a hydroxyl (-OH) group substitution for one or more hydrogen atoms in a hydrocarbon.  
  c.   All are formed when a methyl(-CH3) group is displaced by a carboxyl (-COOH) group.  
  d.   All of the above.  
  Hint    
      
  2.Proteins, a type of hydrocarbon polymers, are a necessary part of all living cells. Which substituted hydrocarbons is linked to form proteins?  
  a.   alcohols  
  b.   amino acids  
  c.   All are formed when a methyl(-CH3) group is displaced by a carboxyl (-COOH) group.  
  d.   None of the above.  
  Hint    
      
  3.If your diet contains too much cholesterol, cholesterol may build up in the arteries of your heart. What would happen if you completely avoided eating any cholesterol?  
  a.   Your cell membranes would be healthier.  
  b.   amino acids  
  c.   All are formed when a methyl(-CH3) group is displaced by a carboxyl (-COOH) group.  
  d.   None of the above.  
  Hint    
      
  4.Both lipids and carbohydrates are hydrocarbon polymers that contain carbon, hydrogen, and oxygen. What quality distinguishes lipids from carbohydrates?  
  a.   Your body can break down lipids but cannot break down carbohydrates.  
  b.   Lipids are a more concentrated source of energy for the body than carbohydrates.  
  c.   Lipids are a type of protein while carbohydrates are a type of sugar.  
  d.   For a balanced diet, you should eat more lipids than carbohydrates.  
  Hint    
      
  5.What do methane, ethane, and octane have in common?  
  a.   They are supersaturated hydrocarbons.  
  b.   They are unsaturated hydrocarbons.  
  c.   They contain both covalent and ionic bonds.  
  d.   They occur only in ring structures.  
  Hint    
      
  6.What do glucose, sucrose, and starch have in common?  
  a.   They are polymers.  
  b.   They are carbohydrates.  
  c.   They each contain twice as many hydrogen atoms as oxygen atoms.  
  d.   All of the above.  
  Hint    
      
  7.What is the difference between formic acid and methylamine?  
  a.   Formic acid is an alcohol and methylamine is an amine.  
  b.   There is no difference; methylamine is another name for formic acid.  
  c.   Formic acid contains a carboxyl (-COOH) group and methylamine contains an amine (-NH2) group.  
  d.   Formic acid is a carboxylic acid and methylamine is an alcohol.  
  Hint    
      
  8.What term best describes substances containing carbon?  
  a.   natural materials  
  b.   food  
  c.   living organisms  
  d.   organic compounds  
  Hint    
      
  9.Which of the following best describes polymers?  
  a.   proteins, carbohydrates, and lipids  
  b.   hydrocarbons in which some of the carbon atoms form double or triple covalent bonds with other carbon atoms  
  c.   large molecules made up of smaller organic molecules, called isomers, that are linked together to form new bonds  
  d.   large molecules made up of smaller organic molecules, called monomers, that are linked together to form new bonds  
  Hint    
      
  10.Which of the following cannot be a hydrocarbon?  
  a.   methane  
  b.   substances that form solids or liquids at room temperatures  
  c.   substances with low boiling points due to short carbon-hydrogen chains  
  d.   a substance containing only carbon, hydrogen, and nitrogen  
  Hint    
      
  11.Which of the following is true of the 18 possible isomers of octane (C8H18])?  
  a.   They contain carbon atoms covalently bonded to hydrogen and carbon atoms.  
  b.   They occur in branched chains.  
  c.   substances with low boiling points due to short carbon-hydrogen chains  
  d.   All of the above.  
  Hint    
      
  12.Why does carbon combine with so many other elements?  
  a.   the color carbon turns when combined with sulfuric acid  
  b.   its ability to bond with hydrogen and nitrogen  
  c.   its atomic structure  
  d.   its atomic radius  
  Hint    
      
  13.What does the octane rating for gasoline tell you?  
  a.   The tendency of fuel to knock.  
  b.   It measures the amount of heptane in fuel.  
  c.   It measures the amount of octane in fuel  
  d.   All of the above.  
  Hint    
      
  14.What would you call two hydrocarbons with different molecular structures but identical chemical formulas?  
  a.   unsaturated hydrocarbons  
  b.   ethene  
  c.   covalent  
  d.   isomers  
  Hint    
      
  15.Which of the following describes alcohols?  
  a.   compounds used only as disinfectants and cleaners  
  b.   compounds that contain only double bonds between the carbon the oxygen atoms  
  c.   a type of hydrocarbon  
  d.   compounds formed when a hydroxyl (-OH) group replaces one or more hydrogen atoms in a hydrocarbon  
  Hint    

 
   
McGraw-Hill / Glencoe
The McGraw-Hill Companies