1. Which molecules below are aromatic? Select one: I and 11 I, II and III II...
Which of these molecules are structural isomers of n-octane (CgH18)? III II IV Select one: a. I, II, IlII, IV, and V b. III and IV c. II and V d. I, IIl, and IV e. only II has 8 carbon atoms in a chain
please exlain why! Which of these is an aromatic molecule? 0=ả: < II III IV I O A. 11 OB.1 OC.IN O DV O E. III
Which of the following compounds would you expect to be antiaromatic? (i) cyclooctatetraene (ii) 1,3-cyclooctadiene (iii) cyclooctatetraenyl dianion (iv) 1-ethenylcyclooctatetraene (v) 1,3,5,7-octatetraene Select one: a. i only b. i, ii, iv and v only c. iii only d. i and iv only e. all the above From my working I found i, ii, iv, and v to be non aromatic and iii to be aromatic. Is non aromatic the same as antiaromatic?
Question 26 (2 points) Saved Which of the following ions is aromatic? D:0 = I II IV OA) OB) 11 OC) III OD) IV Question 27 (2 points) Saved Which of the following ions is aromatic? 20: A) Only II and III OB) Only III and IV OC) Only I and II OD) Only II and IV
19. Which of the following molecules are achiral? A) II, III B) I, II C) I, IV D) III, IV 20. How many stereogenic centers are present in ephedrine, a bronchodilator and decongestant? ephedrine A) 0 B) 1 C) 2 D) 3 21. Rank the following groups in order of decreasing priority according to the Cahn-Ingold- Prelog system. -NH2 -NHCH3 -CH2NH2 CH2NHCH3 п V . A) B) I>II> III > IV II >I>IV > III II C II >I> III...
Consider molecules ? - IV below. F OH F OH F... ...OH F ОН I/ III IV What is the relationship between molecules I & II? [Select) What is the relationship between molecules I & III? (Select] What is the relationship between molecules II & IV? (Select] What is the relationship between molecules III & IV? (Select] Prevind
Which of the following correctly matches the molecules to the names of the functional group? I. CH3OCH3 Ether II. CH3CONH2 Amine III. CHESH Thiol IV. CH3CHO Alcohol Select one: 0 a. I and II b. III and IV c. II and III d. I and III Which of the following correctly matches the molecules to the names of the functional group? I. CH3NH2 Amide II. CHESCH; Sulfide III. CH3CONH2 Amine IV. CH3CO,CH3 Ester Select one: a. III and IV b....
) Which of the following is aromatic? IV. V. A) 1 B) II C) III D) IV E) V
Of the alkenes below (I-IV), which one is the most stable? I II III IV IV
Question 47 (2 points) Which one of the following compounds is aromatic? S - II IV a) III Ob) Oc) II O d) IV Question 48 (2 points) Predict the product(s) for the following reaction: NaNH2, NH3 NH2 -NH₂ que "NH2 a) I, II and III b) I and II c) III and I d) II and III