C_3H_12O (O-H proton not shown) A. pentanol B 2-methetlybutanol C. 3-methylbutanol D. None of the listed
b) Consider the proton NMR spectrum of the following ketone: O b H C=C C. d CH H с CH: i) ii) Predict the chemical shifts of each type of proton. Predict the multiplicity of NMR signals for each type of protons. Draw a tree diagram to show the splitting predicted for Hy and indicate the number of lines obtain (given Joc = 15 Hz, Jab = 7 Hz). (7 marks)
Which of the following series diverges? n +2 2n -1 n1 n+3 O A. 2 B. O C. 1,3 O D. 1, 2 OE. 2, 3 F. None O G. O H. 1,2,3 Find the sum of the series A. B. OC. 1/10 D. 1/2 3/2 3/4 OE. 1 F. 5/12 OG. 1/4 H. Divergent Which of the following series converges? oo 2n 1.Σ n 1 23n nE1 (n+ 1)3 n+ 1 3. O A. None O B. 2 O...
1. How many distinct signals are expected in the proton-decoupled 13C NMR spectrum of 4-methyl-2-pentanol A. 3 B.4 C. 5 D. 6 2) what splitting pattern is observed in the proton NMR spectrum for the indicated BOLDED hydrogens CH3OCH2CH2CH2OCH3 a. Singlet B. doublet C. Triplet D. quartet
The proton NMR spectrum for a compound with the formula C,H,O, is shown below along with the spectral data in tabular form. (It may be necessary to expand (zoom) some of the 'H signals to view spin-spin splitting details.) This compound exhibits strong infrared absorption at 1727 and 1195 em plus a medium intensity band at 1637 cm! 13C NMR Data 'H NMR Data Proton Shift Relative Area Normal Carbon DEPT-135 DEPT-90 14.2 Positive No peak 60.4 Negative No peak...
The correct IUPAC name for the following compound is: O a. 1-cyclobutyl-5-pentanol O b. 5-(1-pentanolyl)-cyclobutane O c. none of these choices Od. 1-(5-pentanolyl)-cyclobutane Oe. 5-cyclobutyl-1-pentanol
What protons) yield the 1H NMR signal around 1.8 ppm as a multiplet? H3C CH3 H3C COH H d roton a O Proton "b roton C O Proton "f O Proton "g What protons) yield the 1H NMR signal around 1.8 ppm as a multiplet? H3C CH3 H3C COH H d roton a O Proton "b roton C O Proton "f O Proton "g
Which compound corresponds to a saturated hydrocarbon? A) 2,4-dimethylhexane B) 2-bromobutane C) 3-pentanol D) 1-propene E) 2-hexyne
(References The proton NMR spectrum for a compound with the formula C,H,O is shown below along with the spectral data in tabular form. (It may be necessary to expand (zoom) some of the 'H signals to view spin-spin splitting details.) Intensity 258 $ $ 488 14 13 12 11 10 9 8 7 6 5 4 3 Chemical Shift (oppm 2 1 0 . Reproduced with permission from Sim. Aldri Ca LLC The IH signal at 2.15 ppm is an...
1 H NMR 2-METHYL 2- PENTANOL Peak Chemical Shift (δ) Multiplicity† H‡ Peak Chemical Shift (δ) Multiplicity† H‡ 1 7 2 8 3 9 4 10 5 11 6 12 Specify the multiplicity as a singlet (s), doublet (d), triplet (t), quartet (q), or multiplet (m). Specify the number of hydrogens associated with each peak. THE TOPIC IS RELATED TO H-NMR AND THE GRAPH IS RELATED TO THAT ALSO. THE GRAPH SHOWN ABOVE IS FOR 2-methyl 2-pentanol ....
41. Find O! A) 1 B) O C) -1 0 2 E) None of the Above 42. Find P2 A) 120 B) 10 C) 3 D) 20 E) None of the Above 43. Find.cz A) 120 B) 10 C) 3 D) 20 E) None of the Above 44. Find the missing probability. 0 2 1 3 X 4 p(x) 0.12 0.13 0.27 ? 0.09 A) 1 B) 1.61 C) 0.39 D) 0.43 E) None of the Above 45. Find 4!...