Question

9. Which of these Newman Projections shows the preferred conformation for an E2 reaction to occur? 10. What is/are the product(s) of the following reaction? не сня HC Br both (a) and (b) will be formed, but (b) will be the major product H HECYCH Br 11. For the following reaction, what will be the effect on the rate if [NaCN) is doubled? C3 91 NaCN Br Product DMSO (a) The rate doubles (b) The rate triples (c) The rate quadruples (d) The rate stays the same (e) There is not enough information to determine the effect

9. Which of these Newman Projections shows the preferred conformation for an E2 reaction to occur? (a) (b) (c) (d) (e) 10. What is/are the product(s) of the following reaction? (a) (b) (c) (d) (e) both (a) and (b) will be formed, but (b) will be the major product 11. For the following reaction, what will be the effect on the rate if [NaCN] is doubled? (a) The rate doubles (b) The rate triples (c) The rate quadruples (d) The rate stays the same (e) There is not enough information to

Answer 1

Note:

9. Which of these Newman Projections shows the preferred conformation for an E2 reaction to occur? 10. What is/are the product(s) of the following reaction? HCI не сня both (a) and (b) will be formed, but (b) will be the major product HECYCH 11. For the following reaction, what will be the effect on the rate if [NaCN) is doubled? Br C3 91 w Br Br Br NaCN DMSO → product (a) The rate doubles (b) The rate triples (c) The rate quadruples (d) The rate stays the same (e) There is not enough information to determine the effect

For 9. H & Br should be in trans direction for E2 reaction.

For 10. The reaction would follow Markovnikov's rule.

For 11. The overall reaction is second ordered. First order wrt Bromobutane & first order wrt NaCN.