Answer: d . IV
2-bromo : bromine occupies at second position.
6-isobutyl : isobutyl group occupies at 6th position
4-methyl: methyl group at fourth position
3-ene: a double bond is present on 3rd Carbon
1-ol : OH group is present on the first carbon
18. Which of the following structures represents 2-bromo- 6-isobutyl-4-methyldec-3-en-1-ol? a. b. II C. III d. IV
help with number 6 would be great D) (S,E)-3-bromo-4-methylhex-2-ene R, E)-3-bromo-4-met hylhex-2-ene 5. Name the following compound: A (SE)-3-chlorohex-4-en-1-yne DA (R,E)-3-chlorohex-2-en-5-yne C) (S,E)-3-chlorohex-2-en-5-yne DA (R,E)-3-chlorohex-4-en-1-yne Cl (RE)-3-chloropent-4-en-1-yne 6. Which molecule would have the lowest heat of hydrogenation? IV A) 1 B)Il C)III D) IV E)V
(1) Choose the correct IUPAC Name of the compound Он B.(Z)-5-methylhex-2-en-4-ol A. (E)-5-methylhex-2-en-4-ol D. (Z)-2-methylhex-4-en-3-ol C. (E)-2-methylhex-4-en-3-ol (2) Choose the correct order according to the activity of carbonyl OO RCOR' RCOCR' RČNR'2 RCCI 4 3 2 B. 1>4>3>2 C. 2>1>4>3 D. 4>1>3>2 1>2>4>3 A. (3) Choose the correct structure of 2-chloroethylbenzoate В. A. CH, CH,CОСH, CH, CОСH,СH, II C. D. -соснCH, -сосH,CH, CI Cl (4) The name of the following structure is A. 5-heptanal B. 5-hexanal D.4-hexenal C. 5-hexenal (5)...
+ion OAL, 5) Which of the following structures contains an alkene? A)1 B) II C) III D) IV 6) Which of the following is a secondary alcohol? OH HO B) II AT D) IV C) III 7) Rank the following compounds in order of increasing strength of intermolecular forces, putting the molecule with the weakest intermolecular force first OH A) I II B) I<IIIIIC III ) II<I<III ) IIIII< I D 8) Which of the following compounds has the highest...
vame or Draw ue onowng compounus A. 3,5-diethylhept-6-en-2-ol C. 3-bromo-2-ethylcyclohexene B. D. HaC HC 3 OH H3C CH
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...
4. Which of the following could be antiaromatic (assuming sp hybridization)? A. III B. II C. IV D. E. None 5. Which one of the following is nonaromatic? IV A IV C. D. II E None 6. Which is the correct bond order for the C-C bonds in benzene? III IV A. II B. 1 CN D. E None
26) Give the IUPAC name for the following compound. A) S-4-bromo-1-pentyne C) R-3-bromo-5-pentyne B) R-4-bromo-1-pentyne D) S-3-bromo-5-pentyne 27) What is the major product of the following reaction? 1. BH, 2. H,O, HO A) I B) II C) III D) IV 28) What is the correct classification of the following reaction? Lot OH A) Oxidation reaction C) Substitution reaction B) Elimination reaction D) Reduction reaction 29) Which of the following classes of organic compounds cannot undergo reduction ea. B) Alkenes
6. Which of the following chair Conturul is Uwest ili entis! IV a. 1 d. IV b. II e. V c. III
) Which of the following is aromatic? IV. V. A) 1 B) II C) III D) IV E) V
II: ketone III: carboxylic acid IV: 2° alcohol V: cyclic ester II: carboxylate III: aldehyde IV: epoxide V: ketone II: ketone III: carboxylic acid IV: 3° alcohol V: cyclic ester II: ether III: ketone IV: 3° alcohol V. ketone II: ketone III: carboxylic acid IV: Valcohol V/ cyclic ester 2. Choose the more stable of each of the three pairs of structures drawn below. a H 5 4. 1. 3. [c]1,3&5 6. [e] 1,4&5 [a] 1,4&6 [b] 2,4&6 [d] 2,3&5