Question

check the multuple choice I filled out and help with the ones i left blank please!!

Problem Set Seven (15 points) Chapter 7 and the beginning of 8 Due: Mon, Mar 16 at the beginning of class Multiple Choice Section (0.5 pt each) 1. Which of the compounds below contains a socechy (1) alkyl halide? R-X Primary 3. Which of the following alkyl halides will undergo the fastest Sl reaction with ethanol (HOCH.CH.)? IV a) -Bromo-1-methylcyclopentane (b) 1-Bromobutane (c) Cyclohexyl chloride (d) 2-Chlorobutane (a) I and III (b) II only (c) I, II and III 4. Rank the following compounds in order of decreasing reactivity in a S2 reaction with NaOMe (most reactive least reactive). Cd IV only (e) I, III and IV CH-CH2-CH- CH CH CH. C нс н CH, CH-CH2-1 CH, III IV 2. Place the following carbocations in increasing order of stability (least stable most stable): CHỊ-CH-CH-CH-CN, "CH CH, CA, P a (a) I>IV > II > III (b) IV>I> II > III (or I>IV>1>11 (d) III > II > > Te IV > II > III >1 C-CH, CA, M III - IV (a) IV <II < III <I (b) II <I<III <IV (c) I<II < IV <III (d) II < III <I<IV (e) IV <III <I<II 5. What is the best way to describe the stereochemistry of alkene I in the question above? (a) R (b) S () E (d) z

Answer 1

correct answers

1. option d

2. option b

3.option a

4.option e

5.option c

6. option c

7.option f

8.option d

9. option a

10. option e