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Organic Chemistry Unit Test! /50 Name __________________ Knowledge and Understanding (13 marks) 1. 2. 3. 4. 5. Which molecule could form constitutional isomers? a. CH4 d. C2H5Cl b. C2H3F e. CH2Cl2 c. C2H6O Stereoisomers are molecules that have the same molecular formulas but have a. Different functional groups b. The same sequence of atoms, but their atoms are bonded differently in 3-D space c. The same functional groups, but are bonded in a different sequence d. Multiple bonds instead of single bonds e. Different placement of their multiple bonds The use of compounds in which group has led to reduction of the ozone layer? a. Alcohols b. Aromatics c. Ethers d. alkyl halides e. amides Which is a characteristic feature of a substitution reacton? a. Carbon atoms are bonded to the same number of atoms in the product as in the reactant b. Carbon atoms are bonded to a smaller number of atoms in the product than in the reactant c. Carbon atoms are bonded to a larger number of atoms in the product than in the reactant d. Two compounds react to form one compound e. There are fewer carbon-carbon bonds in the products than in the reactants. Which two reactants could undergo a condensation reaction to produce an amide and water? a. An alcohol and an amine d. A carboxylic acid and an amine b. A carboxylic acid and an amide e. An alcohol and an amide c. An acid an an amine Organic Chemistry Unit Test! 6. 7. /50 Name __________________ In an oxidation reaction a. A carbon will form fewer bonds to carbon b. A carbon will form fewer bonds with oxygen or more bonds to hydrogen c. A carbon will form more bonds with oxygen or fewer to hydrogen d. Two small molecules combine to form a large molecule e. Two large molecules react to form a large molecule and a small molecule Polymers can be made through which types of reactions? a. Elimination and oxidation d. Addition and reduction b. Condensation and addition e. Hydrolysis and elimination c. Substitution and addition 8. Use a structural diagram or line diagram and draw the following: (4 marks) a. butyl ethanoate d. N-ethyl-N-methyl-pentan-2-amine b. N,N-dimethyl propan-1-amine e. 2-cyclopropyl-but-1-ene Organic Chemistry Unit Test! /50 Name __________________ Making Connections (10 marks) 1. Thalidomide has caused enormous grief, yet now it is a source of hope. Explain, using key terms and knowledge of organic chemistry, how thalidomide has gone from “zero to hero”. (4 marks) 2. Transfats, anti-oxidants and using ‘green solvents’. In theory, you read a little blurb on all of these topics! Pick one of them. Describe 2 points you found interesting from your chosen topic. (2 marks) 3. Look around you. There are plastics everywhere! How have organic chemists been able to do so much with such a basic starting material (ethene derivatives)? Explain why such variety in plastic properties is possible, and give an example of a plastic to illustrate one of your points (4 marks) Organic Chemistry Unit Test! /50 Name __________________ Thinking and Inquiry (25 marks) 1. Suppose you are working with four unknown compounds in a chemistry laboratory. Your teacher tells you the compounds are ethane, ethanol, ethyl ethanoate, and ethanoic acid. a. Use the table below to identify each unknown compound: (4 marks) Compound Solubility in water Hydrogen bonding Boiling Point Odour Polarity A B Not soluble Soluble -89OC 77OC Odourless Sweet Non-polar Polar C Very soluble None Accepts from water, can’t form between own molecules Very strong 78OC Very polar D Very soluble Extremely strong 118OC Sharp, antiseptic smell Sharp, vinegar smell b. Very polar According to how you identified the substances, explain the boiling point differences, be specific. (3 marks) 2. Why can ethanol dissolve easily in water, but pentan-1-ol is not soluble? Use words and a picture to illustrate your answer (3 marks) 3. Draw a reaction scheme: a. Reaction of but-1-ene with hydrogen bromide (2 marks) Organic Chemistry Unit Test! /50 Name __________________ b. Polymerization of the following monomer (show 3 linked monomers) (2 marks) c. Polymerization of the following monomer (show 3 linked monomers)(2 marks) d. Oxidation of pentan-2-one (1 marks) e. Synthesis of ethoxyethane from ethane. (4 marks) 4. Explain why each of the following molecules are named incorrectly. Provide the correct name for each. (4 marks) a. 4-methylbutane C. Butoxyethane b. 3,4-dimethylpentane d. Methyl-3-ethylbutanoate