Science Home Product Information Site Map Search Contact Us   Glencoe Online
Quizzes Quiz
 
Chapter 9: Chemical Bonding

Practice Test
      
  1.The CO molecule is _____________________.  
  a.   tetrahedral and nonpolar  
  b.   linear and nonpolar  
  c.   trigonal planar and polar  
  d.   linear and polar  
  Hint    
      
  2._____________ is the measure of an atom's ability to attract electrons in a bond.  
  a.   Electronegativity  
  b.   melting point  
  c.   Shielding  
  d.   Ionic radius  
  Hint    
      
  3.Atoms that share electrons form __________ bonds.  
  a.   quantitative  
  b.   ionic  
  c.   quartets  
  d.   covalent  
  Hint    
      
  4.Water molecules stick together to form droplets because of their ___________.  
  a.   covalencies  
  b.   polarities  
  c.   masses  
  d.   volumes  
  Hint    
      
  5.What is the most stable arrangement of three electron pairs attached to a central atom?  
  a.   pyramidal  
  b.   tetrahedral  
  c.   trigonal planar  
  d.   hexagonal  
  Hint    
      
  6.The shielding effect is the tendency of inner energy level electrons to block the attraction of the nucleus for ________________.  
  a.   protons  
  b.   valence electrons  
  c.   other atoms  
  d.   neutrons  
  Hint    
      
  7.Atoms that transfer electrons form __________ bonds.  
       a.  dative      b.  ionic      c.  covalent      d.  coordinate        
  Hint    
      
  8.A chemical bond that results from a shared pool of valence electrons is called a ____________ bond.  
  a.   metallic  
  b.   ionic  
  c.   directional  
  d.   polar covalent  
  Hint    
      
  9.The arrangement of electron pairs around each of the two carbon atoms in the ethene molecule, C2H4, is best described as _________________.  
  a.   linear  
  b.   trigonal planar  
  c.   tetrahedral  
  d.   square planar  
  Hint    
      
  10.An arrow points in the direction of the _______________ of a polar covalent molecule.  
  a.   negative end  
  b.   bottom  
  c.   center  
  d.   positive end  
  Hint    
      
  11.Two atoms that share six electrons are said to be joined by a __________ bond.  
  a.   triple  
  b.   hexyl  
  c.   double  
  d.   single  
  Hint    
      
  12.The arrangement of electron pairs around the nitrogen atom in the ammonia molecule, NH3, is best described as _______________.  
  a.   square planar  
  b.   tetrahedral  
  c.   pyramidal  
  d.   linear  
  Hint    
      
  13.In general, electronegativity ___________ atomic number within a period.  
  a.   is inversely proportional to  
  b.   remains constant with  
  c.   decreases with  
  d.   increases with  
  Hint    
      
  14.The type of analysis based on the movements of a stationary phase and a mobile phase is called _____________.  
  a.   chromatography  
  b.   phase movement  
  c.   titration  
  d.   photography  
  Hint    
      
  15.When strontium atoms react with oxygen atoms, they form __________ bonds.  
  a.   ionic  
  b.   covalent  
  c.   polar covalent  
  d.   triple  
  Hint    
      
  16.The center of positive charge in the H2O molecule lies ______________________.  
  a.   on the oxygen atom  
  b.   between the two hydrogen atoms  
  c.   in the geometric center of the molecule  
  d.   on one of the hydrogen atoms  
  Hint    
      
  17.KF is a/an _______________ formula, which shows the ratio of potassium and fluoride ions in crystalline potassium fluoride.  
  a.   covalent  
  b.   empirical  
  c.   double  
  d.   molecular  
  Hint    
      
  18.The CO2 molecule is _____________.  
  a.   linear  
  b.   trigonal planar  
  c.   hexagonal  
  d.   pyramidal  
  Hint    
      
  19.Chemical bonding results in ________________.  
  a.   lower density  
  b.   decreased stability  
  c.   longer bond lengths  
  d.   increased stability  
  Hint    
      
  20.The boiling point of methane, CH4, is ___________ than that of water.  
  a.   much higher  
  b.   slightly higher  
  c.   much lower  
  d.   slightly higher  
  Hint    

 
   
McGraw-Hill / Glencoe
The McGraw-Hill Companies