1. What are two types of constitutional (or structural) isomers? 1234567891011121314151617181920 2122232425262728293031323334353637383940 41424344454647484950 1.positional and geometrical 2.functional group and geometrical 3.functional group and positional 4.geometrical and optical 5.positional and optical

2. Which of the following compounds does not have a constitutional isomer with a different functional group? 1234567891011121314151617181920 2122232425262728293031323334353637383940 41424344454647484950 1.propanone (acetone) 2.3-pentanone 3.ethanol 4.dimethyl ether 5.ethanal (acetaldehyde)

3. Which of the following is a chiral molecule? 1234567891011121314151617181920 2122232425262728293031323334353637383940 41424344454647484950 1.CH 3 CBr 2 Cl 2.CBrCl 2 I 3.CH 3 CBrClI 4.(CH 3 ) 2 CHCl 5.CH 2 BrI

4. Cyclohexane can assume two different geometries, but to do this the ring becomes nonplanar. What are these two arrangements of cyclohexane called? 1234567891011121314151617181920 2122232425262728293031323334353637383940 41424344454647484950 1.cis and trans 2.vic and gem 3.strained and unstrained 4.twist boat and chair 5.meta and para

5. The pKbfor the formate ion (HCOO - ) is 10.26. What is K a for formic acid (HCOOH) ? 1234567891011121314151617181920 2122232425262728293031323334353637383940 41424344454647484950 1.1.8 x 10 -5 2.3.6 x 10 -4 3.1.8 x 10 -4 4.1.8 x 10 -3 5.5.6 x 10 -4

6. When primary alcohols are oxidized to aldehydes, the reaction mixture is heated to a temperature slightly above the boiling point of the aldehyde so that the aldehyde distills out as soon as it is formed. Why must aldehydes be removed from the reaction mixture as soon as they are formed? 1234567891011121314151617181920 2122232425262728293031323334353637383940 41424344454647484950 1.The aldehydes might polymerize. 2.The aldehydes might be reduced back to the alcohol. 3.The aldehydes might oxidize to CO 2 and H 2 O. 4.Aldehydes are easily oxidized to carboxylic acids. 5.Aldehydes readily react with unreacted alcohol.

7. The reaction of 1-propanol with K 2 Cr 2 O 7 in acidic solution produces __________. 1234567891011121314151617181920 2122232425262728293031323334353637383940 41424344454647484950 1.propyne 2.propene 3.propanal 4.propanone 5.cyclopropanone

8. Which one of the following cannot be easily oxidized to a carboxylic acid by an acidic solution of K 2 Cr 2 O 7 ? 1234567891011121314151617181920 2122232425262728293031323334353637383940 41424344454647484950 1.methanol 2.ethanol 3.acetaldehyde 4.2-butanol 5.propanal

9. Which of the following is not an advantage for the preparation of esters by the reaction of an acyl halide and alcohol versus the preparation by the reaction of an organic acid and alcohol? 1234567891011121314151617181920 2122232425262728293031323334353637383940 41424344454647484950 1.Reactions between acids and alcohols are slow and require prolonged boiling. 2.Reactions between acyl halides and alcohols are rapid and require no catalyst. 3.Reactions between acids and alcohols require a strong inorganic acid catalyst. 4.Reactions between acids and alcohols establish an equilibrium with both reactants and products present. 5.Acyl halides are much cheaper than organic acids because they are readily

10. A reaction in which a small molecule, such as H 2 O or HCl, is eliminated and two larger molecules are bonded together is called a(n) __________ reaction. 1234567891011121314151617181920 2122232425262728293031323334353637383940 41424344454647484950 1.elimination 2.condensation 3.addition 4.hydration 5.oxidation

11. Which of the following is not a component of nucleic acids? 1234567891011121314151617181920 2122232425262728293031323334353637383940 41424344454647484950 1.phosphate group 2.carbohydrate unit 3.amino acids 4.selected organic acid 5.none of these