Hunter College, CUNY - CHEM 120chem 120 exam 3 ( all answers correctly highlighted in RED )

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Chemistry 120 Sample Exam III Spring 2015 1. What is the missing reagent in the following reaction? Benzoic acid + _________ ! benzamide + water a) Water b) Hydrogen peroxide c) Ammonia (NH3) ... d) Acetic acid 2. What is the proper name for the following tertiary amide? a) N,N-dimethyl-3-methylbutanamide b) N,N-diethyl-2-methylbutanamide c) N,N-dimethyl-2-methylbutanamide d) N,N-dimethyl-1-methylbutanamide 3. How would you prepare a secondary amide from a generic carboxylic acid starting material? a) By treating it with ammonia b) By excessively reducing it with hydrogen gas c) By reacting it with a primary amine d) By reacting it with a secondary amine 4. What is the proper name for the following ester? a) Propyl methanoate b) Butyl propanoate c) Propyl acetate d) Butyl acetate 5. Which species represents the strongest nucleophile? a) Butane b) Ic) NH3 d) H3O+ 6. What mechanism’s rate solely relies on the concentration of a tertiary starting material, which must undergo a reaction without the involvement of the weak nucleophile? a) SN1 b) SN2 c) Both SN1 and SN2 d) E1 7. When iodide (I-) reacts with CH3(CH2)4CH2Cl in acetone another haloalkane is formed. Please name the product and predict what mechanism the reaction most likely undergoes: a) 1-iodopentane, SN1 b) 2-iodohexane, SN1 c) 1-iodohexane, SN2 d) 2-iodohexane, SN2 [Show More]

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