CHEM 233 Lesson 2 Quiz Questions and Answers 2026 Update 100% Correct- American Public University

Lesson 2 Quiz - Results Attempt 1 of 1 Written Mar 24, 2025 8:43 PM - Mar 24, 2025 9:44 PM Released Apr 4, 2025 11:55 PM Attempt Score 92 / 100 - 92 % Overall Grade (Highest Attempt) 92 / 100 - 92 % Question 1 4 / 4 points Pick out the conformation for butane which has the gauche conformation. Question options: Question 2 4 / 4 points Identify the more stable of the two pictured molecules: Question options: Question 3 4 / 4 points If an acyclic alkane hydrocarbon contains n carbon atoms, how many hydrogen atoms must it also contain? Question options: 2n 2n+2 n+2 n-2 n Question 4 4 / 4 points How many secondary hydrogens does the following compound contain? Question options: 2 4 8 12 15 Question 5 4 / 4 points How many degrees of unsaturation does the following structure have (lone-pairs are not shown)? Question options: 5 3 7 6 4 Question 6 4 / 4 points Which of these molecules has the lowest boiling point? Question options: Question 7 4 / 4 points The molecules shown in Fischer projections below are: Question options: both conformational isomers and structural isomers. gauche isomers. conformational isomers. structural isomers. not isomers. Question 8 4 / 4 points Which of the following molecules have the highest heat of combustion? Question options: CH3CH2CH2CH2CH3 CH3CH2CH3 CH4 CH3CH3 CH3CH2CH2CH3 Question 9 4 / 4 points Identify the circled functional group found in Penicillin G. Question options: amine aldehyde carboxylic acid carbonyl hydroxyl Question 10 4 / 4 points Which of the following is an aldehyde? Question options: Question 11 4 / 4 points The energy barrier for carbon-carbon bond rotation in propane is mainly due to: Question options: angle strain torsional strain bond strain steric strain Question 12 4 / 4 points Identify the circled functional group found in Kevlar. Question options: ether amine ester amide carbonyl