9. Choose the most stable alkene among the following:
a. 1-hexene b. (E)-2-hexene c. (Z)-2-hexene d. They are all of equal stability.
10. What is the relation between an enantiomer's configuration and its specific rotation?
(a) R compounds usually are dextrorotatory with few exceptions. (b) R compounds always are dextrorotatory. (c) There is no relation. (d) R compounds always are levorotatory.
9. Choose the most stable alkene among the following: a. 1-hexene b. (E)-2-hexene C. d. (Z)-2-hexene...
9. C (Z-2-hexene d. They are all of equal stability. Choose the most stable alkene among the following a 1-hexene b. (E)-2-hexene 10. What is the relation between an enantiomer's configuration and its specific rotation? (a) Rcompounds usually are dextrorotatory with few exceptions (b) R compounds always are dextrorotatory. (c) There is no relation. (d) R compounds always are levorotatory 11. How many chiral centers are there in tartaric acid, and how many different stereoisomers exist for this acid? он...
Using Zaitsev's rule, choose the most stable alkene among the following. A. hex-1-ene B. (E)-hex-2-ene C. (Z)-hex-2-ene D. They are all of equal stability according to Zaitsev's rule.
Using Zaitsev's rule, choose the most stable alkene among the following. OA) (Z)-hex-2-ene B) hex-1-ene OC) (E)-hex-2-ene
Part 1What is the major product of the following reaction? a. 2-ethyl-1-pentene b.(E)-4-methyl-3-hexene c.(E)-3-methyl-2-hexene d. (Z)-3-methyl-2-hexene Part 2 What alkyl chloride gives the following as the only product upon treatment with a strong base? a. b. c. d. Part 3 Give the major product for the following E1 reaction. a. b. c. d. e. CH3 CH3CO Br CH3
Question 9 What is the IUPAC name of the following compound? NH2 a. (E)-6-amino-2-hexene b. (Z)-1-amino-2-hexene O c. 3-allyl 1-aminopropane d. (E)-1-amino-4-hexene
1. The most stable conformation of trans-3-ethyl-1-iodocyclohexane is a. Et b. C. d Et Et 2. a 3. Which of the following is NOT a resonance structure of ozone? b. a. d. All are valid resonance structures C. 4. Arrange the following bicyclic alkenes in order of increasing stability (least stable to most stable) II II d. Il<lll< C. I<ll<llI b. I<lll<ll a. Ill<ll< 5 What is the correct Lewis structure for CHsNCO? b. No 0 НС H,C- a. d....
6. Draw the two chair conformations for cis-1-sec-butyl-2-ethylcyclohexane. Predict the most stable conformer and draw the corresponding Newman projection (4 pts) 7. Convert the following compounds from their 3D structure to their Fisher projection and vice-versa (4 pts) НО Br HO co₂me HN CI CO2Me НО -СІ НЕОН СН2ОН 5| Page 8. The specific rotation for (R)-methyl 2-chloro-2,3-dihydroxypropanoate is -126.7. A student prepare a sample of methyl 2-chloro-2,3-dihydroxypropanoate enantiomers that shows a specific rotation of +89.6, (a) Calculate the percent...
Please show how to solve these questions! 1 The most stable conformation of trans 3-ethyl-1-odocyclohexane is: 2. List the following carbocations in the order of their stability (most stable first and least stable last). 6630 3. Arrange the following bicyclic alkenes in order of increasing stablity (least stable to most stable). 4. Assign the R and/or S configuration to the chirality centers in the following compound a) 2R, 3R b) 25, 3R c) 2R, 3S d) 25, 35 1. Provide...
10) Which of the following statements is (are) true for the compound (R)-2-butanol? A) This compound is chiral. B) This compound is optically active. C) This compound has an enantiomer D) all of the above E) none of the above 11) Predict the specific rotation of the compound shown. CH нс A) It is impossible to predict; it must be determined experimentally. B) Because both asymmetric centers are R, the compound is dextrorotatory. C) Because both asymmetric centers are S,...
QUESTION 1 Hydrogenation of 3-hexyne with Pd catalyst gives: O a. hexane b.(E)-3-hexene OC. (Z)-3-hexene d. 3-hexanol QUESTION 2 Reaction of ethanol with metallic Na belongs to: a. acid-base reactions b. Sn2 reactions c. E1 reactions O d. redox reactions QUESTION 3 If 1-hexyne is subjected first to Lindlar's catalyst and hydrogen, and then the formed product is treated with HBr in the presence of radicals, the ultimate product is: a. 1-bromohexene b.2-bromohexane c. dodecane d. 1-bromohexane