Question

7. Snl reactions usually proceed with athons a rectn equal amounts of inversion and retention at the center undergoing substitution. slightly more inversion than retention at the center undergoing substitution. ntly more retention then inversion at the center undergoing substitution. (D) (E) sligh complete inversion at the center undergoing substitution. complete retention at the center undergoing substitution How many distinct alkene products are possible when the alkyl bromide below undergoes E2 elimination? 8. (A) 1 (B) 2 (C) 3 (D) 4 CH OH heat Br CH3 D 5 9. Which of the following is a secondary alky halide? (A) CICH2CH2C(CH3)3 (B) (C)) CICH2CH-CH(CHs)2 (CH3)3CC|CH2CH3 (E) CICH2C(CH3)CH2CH3 10. What is the correct structure of the product of the following reaction? Sy,2 cis-1-bromo-3-methylcyclopentane OH CH но CH3 "Он но HO CH он

can you give me the correct answers with explanations?

Answer 1

Ans 7 : A) equal amounts of inversion and retention at the center undergoing substitution

SN1 reactions , as the name suggests are unimolecular nucleophilic substitution reactions , that occur in two steps. The first step observes the formation of a carbocation intermediate , which is then attacked in the second step to form the final product. The carbocation can be attacked from its either side , so a racemic mixture is formed unlike the case in SN2 reactions.