41. Which of the following structures has a different configuration from the other three? OH CH2CH3 CH2CH3 H H3CH2C 'CH3 H3C CH3 H3C........ H OH OH CH2CH3 H H A) I B) II C) III D) IV OH

2. Assign the R or S configuration to each chiral center in the molecules below. CH2CH2B. CH3 .CO2H (H3C)3C. C=CH HO CH,F H,C=G+CH(CH,CH3)2 CH2CH,CH3 HO H C(CH3)3 ОН CH,CH,Br F"CH2Br 3 4 (numbers indicate the IUPAC numbering)

Question 19 What is the nucleophilic site in each of the following molecules? H₂C CH3 H₂N-CH3 H₂C-CH3 III II A) I: hydrogen; II: nitrogen; III: carbon with lone pair B) I: oxygen; II: nitrogen; III: carbon without lone pair C) I: oxygen; II: nitrogen; III: carbon with lone pair D) I: oxygen; II: carbon; III: carbon with lone pair E) I: carbon; II: nitrogen; III: hydrogen OAA О В.В OCC OD.D 0 I OEE

what is the nomenclature name

1. Redraw the following molecule in the skeletal format. (CH3)2C=CHCH2CH(OH)CH,CH,CHO

name the molecule in the middle please

Choices a. constitutional isomers b. cannot be determined c. identical d. conformational isomers

List the name and position for each substituent in this organic molecule on a separate row of the table below: CH3 Q-CH₂-CH3 CH3–CH–CH2–CH-CH=CH2–CH2–CH3 CH₂-CH₂-CH3 Your answer for the name column should be just one word. In the position column, write the number of the carbon where the substituent is attached to the parent chain (which has been highlighted for you). Note for advanced students: You may assume that the parent chain is numbered from left-to-right in this molecule. You can add more rows to the table if you need them. name Add Row position 0 X

Which of the following is not a chiral compound(s)? * CH3 CH3 C2H5 H3C CI CI CH3 C2H5 H3C H3C C2H5 C2H5 II II IV O II, III and IV I and II O Il and II

Preview File Edit U2HW5.pdf **** 1 2 دارد و در وارد View Go Tools Window Help U2HW5.pdf V Search Page 1 of 2 5A.2 Convert the following to skeletal structures and determine the IUPAC name. a) b) c) H H3CH₂CH3 CH3 CH₂CH3 H CH,CH2CH3 H O H3C H d) H H3 C H3C. H₁ 22 H CH2CH2CH3 H3C. CH2CH2CH3 H3C CH3 H CH(CH3)2 H CH3 5A.3 Rank the following conformational isomers from least stable to most stable. a) CH₂ H ÇUL H >CH(CH3)2 tv A W P CH3 CH 496 }] JUN 10 H3C e) P H H3C X H ((. Ơ 00 Fri Jun 10 1:26 AM Fall 2021 Spring 2022 Screen Shot 2022-0...49.34 PM Organic Chemistry Online + Lab Screen Shot 2022-0...23.23 PM Screen Shot 2022-0....13.53 AM Screen Shot 2022-0...23.27 AM 9 etco