Which of the following is a mechanism for an S 2 reaction? Which of the followin

Question

Which of the following is a mechanism for an S 2 reaction? Which of the following is the rate low for the following reaction? A. Rate = k[H_2O] B. Rate = k[H_2O][1-chloro-methylcyclohexane] C. Rate = k[1-chloro-methylcyclohexane] D. Rate = k[chloride ion] Which of the following substrate sis the least reactive in an S 1 reaction. Which of the following is the product of the following reaction? Which of the following alkyl halides would likely undergo rearrangement during an S_ 1 reaction? For the following reaction, which of the following is the product? For the following reactions, which of the following is the product? What reaction mechanism is most likely for substitution on the following compound? A. S_N1 B. S_N2 C. Either D. Neither Which of the following compounds will react most rapidly with HCl? A) 5-methyl-1-hexene B) 4-methyl-1-hexene C) (E) -5-methyl-2-hexene D) (E) -2-methyl-3-hexene E) 2-methyl-2-hexene Which of the following alkenes yield(s) 3-bromo-3-methylpentane as the major product upon addition of HBr? A) I and II only B) III only C) I, II and III D) all of them E) none of them

Explanation / Answer

45) Reaction mechanism indicated by 'C' represents an SN2 type mechanism. This is because, an SN2 reaction takes place in a single step and the nucleophile attacks from the rear side substituting the leaving group as given in the reaction scheme. Thus, the same step involves bond making with the nucleophile and bond breaking with the leaaving group.

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