Prelim

• Which of the following is true of nonane, C9H20, which has density of 0.79 g/mL, melts at -51 C, and boils at 157 C?

  
  

  a) Nonane is soluble in water.

  b) Nonane is a solid at room temperature.

  c) Nonane floats on the surface of water.

  d) Nonane is a gas at room temperature.

  e) Nonane does not undergo combustion.

  
  

  Answer: c
• In the three-dimensional structure of methane (CH4), the hydrogen atoms attached carbon atom are aligned

  
  

  a) in a straight line

  b) at the corners of a rectangle

  c) at the corners of a square

  d) at the corners of a tetrahedron

  
  

  Answer: d
• A hydrocarbon contains only the element

  
  

  a) carbon and hydrogen

  b) carbon and oxygen

  c) hydrogen and oxygen

  d) carbon, hydrogen and oxygen

  
  

  Answer: a
• The functional group contained in the compound CH3CH2OH is

  a ) aldehyde

  b ) alkene

  c ) alcohol

  d ) ketone

  
  

  Answer: c
• A formula that shows the arrangement of all bonds in a molecule is called

  a ) molecular formula

  b ) complete structural formula

  c ) condensed structural formula

  d ) condensed molecular formula

  e ) isomeric formula

  
  

  Answer: b
• The special feature that determines the family name and chemical reactivity of the organic compound it is found in is called

  a ) covalent bond

  b ) organic compound

  c ) functional group

  d ) ionic bond

  
  

  Answer: c
• VESPR theory predicts that simple carbon compounds will form bonds that are

  a ) as far apart as possible

  b ) as close together as possible

  c ) arranged in a straight line

  d ) pointed to the corners of a cube

  e ) pointed to the corners of a triangle

  
  

  Answer: a
• A molecule containing a carbon atom bonded to a four chlorine atoms has the shape of a

  a ) rhombus

  b ) triangle

  c ) cube

  d) square

  e ) tetrahedron

  Answer: e
• As carbon bonds with atoms of increasingly higher electronegativities, the polarity of the bond

  a ) decreases

  b ) increases

  c ) stays the same

  d ) reverses

  e ) becomes inverted

  Answer: b
• Which of the following is NOT typical of most organic compounds?

  a ) high melting point

  b ) poor solubility in water

  c ) covalent bonding

  d ) low boiling point

  e ) high flammability

  Answer: a
• A functional group is a certain group of atoms that

  a ) increases water solubility

  b ) never contains halogen

  c ) changes the color of the molecule whenever present

  d ) reacts in a predictable way whenever present

  e ) always contains oxygen and nitrogen

  Answer: d
• Answer: c

  
• Answer: e

  
• Answer: b

  
• What is the name of the continuous chain alkane with six carbon atoms?

  a ) butane

  b ) pentane

  c ) heptane

  d ) hexane

  e ) octane

  Answer: d
• Answer: a

  
• Answer: c

  
• Answer: b

  
• The major product formed when bromine reacts with propane is

  a ) 1-bromopropane

  b ) 2-bromopropane

  c ) 3-bromopropane

  d ) propyl bromide

  e ) bromopropane

  
  

  Answer: b
• Answer: b

  
• Answer: c

  
• Answer: a

  
• Answer: c

  
• Answer: d

  
• Answer: b

  
• Answer: c

  
• A cycloalkane

  a ) always contains a three carbon ring

  b ) contains -CH3 groups joined by single bonds

  c ) has no hydrogen atoms

  d ) has two fewer carbon atoms than the corresponding alkane

  e ) has two fewer hydrogen atoms than the corresponding alkane

  
  

  Answer: e
• The simplest cycloalkane has

  a ) 1 carbon atom

  b ) 2 carbon atom

  c ) 3 carbon atom

  d ) 4 carbon atom

  e ) 5 carbon atom

  
  

  Answer: c
• Answer: c

  
• The reaction of butane with oxygen is called

  a ) substitution

  b ) addition

  c ) neutralization

  d ) combustion

  e ) titration

  
  

  Answer: d
• Answer: d

  
• Answer: d

  
• Answer: e

  
• Answer: c

  
• What is the name for a two-carbon alkyl group?

  a ) ethyl

  b ) butyl

  c ) pentyl

  d) proply

  e ) methyl

  
  

  Answer: a
• The reaction of an alkene and water in the presence of an acid catalyst to produce an alcohol is called

  a ) hydrolosis

  b ) halogenation

  c ) alkoholysis

  d ) hydration

  e ) hydrohydration

  
  

  Answer: d
• The major product formed when bromine reacts with propane is

  a ) 1,1-brominepropane

  b ) propyl bromide

  c ) 2-bromopropane

  d ) brominepropene

  
  

  Answer: c
• Alkenes and alkynes are called unsaturated compounds because

  a ) they have the maximum number of hydrogen atoms attached to each carbon in the compound

  b ) they have fewer hydrogen atoms attached to the carbon chain than alkanes

  c ) they have more hydrogen atoms attached to the carbon chain than alkanes

  d ) they have more carbon atoms than alkanes

  e ) they have fewer carbon atoms than alkanes

  
  

  Answer: b
• Answer: c

  
• The alcohol in the list that would be most soluble in water is

  a ) 1-hexanol

  b ) 1-pentanol

  c ) ethanol

  d ) 1-butanol

  e ) 1-heptanol

  
  

  Answer: c