
Which of these molecules is conjugated? HyC=C=CH Only A Only B. Only c. Both B. and...
Write the common name for each amine. HyC-N—C—CH name: methylethanamine Hyc—2 2-CH name: ethylethanamine These compounds are secondary amines,
Acid pka Conjugated base Acid OH 00 15.2 H SO HyC HO- 15.7 17 HO+ NH "NH wo HAC CHE HOC HọcoỒ CH, Họco CHỊ | пен HC- H H ,C- 25.5 NHA 0910 . NH NH₂. 38 NO2 10.5 | 20 11 21 un 5 HC-SH CH₃- 48 OCH, Assignment: First, find your name in the next pages. Beside your name, 3 acid-base couples are given by numbers. They refer to acid or base find in the table on...
22. Which of the following compounds is(are) conjugated diene(s)? II III IV a. ll only b. I and III c. I and IV d. II, Ill, and IV 23. Vitamin D, has the following structure. Classify the circled pi-bond in vitamin D, as conjugated, cumulated or isolated a. Conjugated b. Cumulated c. Isolate 24. What is the IUPAC name for the following compound? a. (22,42,6E)-3,4,7-trimethylocta-2,4,6-triene b. (2,4,6E)-2,5,6-trimethylocta-2,4,6-triene c. (25,4Z)-3,4,7-trimethylocta-2,4,6-triene d. (48,6E)-2,5,6-trimethylocta-2,4,6-triene
8. Which of the following molecules has an R configuration? Both (a) and (b). CH2NH2 с. a. CH но CH2NH2 CH-оH CH H2N Neither (a) nor (b). d. b. CH2NH2
5) Which of the following compounds isare) configuration(s)? HyC- CE CH, нен HO 6) Arrange the following carbocations in order of decreasing stability: CH3 H₂C Ct-CH₂ H₂C - CH₂ CH² B CH² - CH₂ H₃ C C CH₃ 7) Which of the following are nucleophiles? I. CH3C(O)CH3 IL CH3Br TIL CH3CH2C=C- A) I В) C) III D) I + II E) I + III 8) Order the following substrates according to the increase in SN2 reaction rate: (CH3)2CHBr, (CH3)3CBr, CH3CH2Br,...
9. Which of the following pairs of structures represent a pair of enantiomers HyC.. HCN Had BCH H₂ CH₂ C OH H, CH.CH соон H ! CHE соон H₂C....! н HNH 10. What is the relationship of the following two compounds? COOH HCI HCI and HC COOH ні он OH a. Constitutional isomers b. Diastereomers c. Identical d. Enantiomers 11. Name the following hydrocarbon. 295 a. 2,3-dimethylbutane b. hexane c. 1,2-dimethylbutane d. 2-methylpentane
35) Which molecules have dipole dipole forces? a. CH b. CHCI c. HCI A) a and b B) a and c C) a, bande D) none of them E) b and c
Which of the following molecules has an S configuration? 8. SH a. CH BrH2C "CH-он CH2SH CH Вr b. "CHон c. both (a) and (b). d. neither (a) nor (b). Jesl ecorrect order of priorities in the R,S system?
Consider the following molecules: b. а. CHS CH3 O NH— CH—CH2—ОН NH2-CH-C-OH CHз d. C. CHз о Но-СН—С—ОН НО—С—С—С—ОН CH3 [Select ] i. Which of the molecules above is a secondary amine? ii. Which of the molecules above will be a zwitterion under physiological conditions (pH 7)? (Select) [Select ] ii. Which of the molecules above has two acidic protons?
5. Complete the following reactions.(20%) HyC-S-H,C-CH-CH; KOH CH,OH Br HỊC-HC-CH-CĐH, - CH,SNa HC-H2C-CH-CH; NaSH NACH(CO,)] Onoga kidemosena CH ou nogometna masa CH-nc-quvchilari (10)