Question 12 (4 points) Which of the indicated C-H bonds has the lowest homolytic bond dissociation...
6. Which of the indicated C-H bonds has the lowest bond dissociation energy? - CH₂ CHS HH H- C= 0 H-CEC-CC-H HH c.C E. E
Question 35 (2 points) In the molecule shown below, determine which of the highlighted C-H bonds a to d is expected to have the lowest bond dissociation energy? Ha HD Hc Hd Oa) C-Hc Ob) C-Hb Oc) C-Ha O d) C-Hd Question 36 (2 points) Predict the major product(s) of the following reaction. Br2 light Br . Br Br CH2Br. CH2B1 -CH2Br Br IV Br O a) 11 Ob) IV Oc) III Od
Question 19 (2 points) The reaction of 1,3-butadiene with hydrogen halide at 40°C will undergo addition under control a) 1. 2; thermodynamic b) 1, 2; kinetic O c) 1,4; kinetic d) 1.4: theromodynamic Question 20 (2 points) In the molecule shown below, determine which of the highlighted C-H bonds a tod is expected to have the lowest bond dissociation energy? Ha HE Hс Hd a) C-Ha b) C-Hb DC-HC d) C-Hd Provloun Page
Question 19 (2 points) Which of the following compounds will undergo the fastest SN 1 reaction? Br BI Br Br 1 I! II! IV oa) III ob) IV OC) 11 od) 1 Question 20 (2 points) In the molecule shown below, determine which of the highlighted C-H bonds a to d is expected to have the lowest bond dissociation energy? HU Hd Oa) C-Hb ob) C-HC Oc) C-Hd od) C-Ha
Question 5 (3 points) What is the bond angle between the two O-H bonds in H20?! O 1) <109.5 degree's O2) 109.5 degree's 03) 120 degree's 4) <120 degree's Previous Page Next Page
1. Which of the following single bonds has the highest average bond dissociation enthalpy? (A) O-O (B) S-S (C) Se-Se (D) Te-Te 2. Which of the following group 14 hydride compounds has the highest E-H bond dissociation enthalpy? (A) Me3C-H (B) Me3Si-H (C) Me3Ge-H (D) Me3Sn-H
Question 6 0.5 pts The table below contains the bond dissociation energies for common bonds. 410 Dissociation energy Bond (kJ/mol) |C-c 350 CNC 611 C-H 350 (c=0 799 0-0 180 O=O 498 460 C-O H-o Calculate the bond dissociation energy required for breaking all the bonds in a mole of water molecules, H20. Express your answer numerically, in terms of kJ/mol, and to three significant figures.
Question 11 (2 points) Saved Rank absorption of the indicated bonds in decreasing (highest to lowest) order of IR frequency. II O a) III>II>1 Ob) 1>1>111 Oc) III>>11 d) />II>111 Question 12 (2 points) Which of the indicated protons in the following compound would appear most downfield in the 1H NMR spectrum? III IV II O a) IV Ob) 11 c)! O d) III
O D. The overall reaction is endothermic. O E-b labels a transition state. QUESTION 28 Which of the indicated C-H bonds has the lowest bond dissociation energy? B. C. CH3 CH3 H3C CH3 D. E. НН НН OA.A OB. B O C. c ○ D, E (0) E. D
Question 11 (2 points) Rank absorption of the indicated bonds in decreasing (highest to lowest) order of IR frequency H II Oa) III>II>I ob) >I>III Oc) III>I>11 od) 1>II>III Question 12 (2 points) Which of the indicated protons in the following compound would appear most downfield in the 'H NMR spectrum? IV Oa) IV ob) 11 Oc) od) III