NivaarExam PrepOfficial exam papers ↗

04-BS-12: December 2013

Nivaar worked solution (AI-drafted; not reviewed by a licensed engineer)

  1. Question 1 Iso-octane Structure, Carbon Classification & Family Identification
  2. Question 2 Isomers of C6H14, Cyclohexane Combustion & Propane Chlorination
  3. Question 3 Markovnikov Addition of HBr, Amine/Ether Structures & Methanol→Ethanol Synthesis
  4. Question 4 Pentyne-2 Addition Reactions & Butanol Isomer Differentiation
  5. Question 5 Ester/Alcohol Reactions, Dehydration & Hydrogenation of Butene Isomers

Start with Question 1 →

National Exam 04-BS-12, Organic Chemistry — December 2013. 3 hours, closed-book examination; no calculator allowed. Answer ALL FIVE problems; each problem is of equal value (20 points), and the lettered/numbered sub-parts of a given problem may be treated independently.

Reference texts: McMurry, Organic Chemistry, 9th ed. (nomenclature, isomerism, alkene/alkyne addition reactions, electrophilic aromatic substitution, alcohols and ethers, esters, oxidation-reduction of alcohols, Grignard synthesis).

Check: the source paper labels Problem 1's three parts "a) 10 points", "b) 6 points", "a) (4 points)" — the second "a)" is a misprint for "c)" (it follows "b)" and the marking scheme sums 10+6+4=20). Answered below as (a), (b), (c) in the order given.