Help Plz!

I suck at this, any help would be great:

Question 3 (Multiple Choice Worth 10 points)
Which functional group contains a nitrogen atom?
 ketone
 ester
 amine
 carboxylic acid
_____________________________ ___________

Question 4 (Multiple Choice Worth 10 points)
An isomer is a group of compounds with ___________.
 same molecular formula and same molar mass but different structures
 different molecular formulas and different molar masses
 same molecular formulas with different molar masses
 all of these
_____________________________ ___________

Question 5 (Multiple Choice Worth 10 points)
All combustion of fossil fuels _________.
 give off energy
 are complete combustions with oxygen
 are endothermic reactions
 are 100% efficient
_____________________________ ___________

Question 6 (Multiple Choice Worth 10 points)
Which is not a characteristic of alkanes ?
 They have a general formula of CnH2n+2
 They have tetrahedral geometry
 They are unsaturated
 They are hydrocarbons that contain highest possible ratio of C to C
_____________________________ ___________

Question 7 (Multiple Choice Worth 10 points)
Which characteristic functional group is present in almost all of the monomers that participate in addition-polymerization ?
 –OH
 –CHO
 C=C
 C- Cl
_____________________________ ___________

Question 8 (Multiple Choice Worth 10 points)
Polymerization is a(n)________
 formation of large molecules out of smaller molecules
 formation of small molecules out of large molecules
 analysis of the chemical content of polymers
 effective means of producing molecules of intermediate size but not very large molecules
_____________________________ ___________

Question 9 (Multiple Choice Worth 10 points)
The oxidation of primary alcohols produces ________
 carboxylic acids
 amines
 ketones
 esters
_____________________________ ___________

Question 10 (Multiple Choice Worth 10 points)
The complete combustion of C2H6 in air yields ______

NOTE: The numbers listed after the C's and H's above and below are intended to be subscripts.
 C2H4 and H2
 CO and H2O
 CO2 and H2O
 C and H2
_____________________________ ___________

Question 11 (Multiple Choice Worth 10 points)
The small molecules used to synthesize polymers are called _________.
 macromolecules
 monomers
 elastomers
 peptides only