Which of the following is a slow step in SN1 reactions?
Correct answer: B. Formation of carbocation
- A. Ionization
- B. Formation of carbocation
- C. Formation of Double bond
- D. Formation of alkyl halide from carbocation
Explanation
The formation of a carbocation is the slow, or rate-determining, step. The subsequent step, formation of a bond between the nucleophile and the carbocation, occurs very rapidly. Because the slow step of the reaction involves only the substrate, the reaction is unimolecular.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
About Alkyl Halides
Alkyl halides are named and related to their carbon-halogen structure, polarity and reactivity. The key reactions are nucleophilic substitution by SN1 and SN2 mechanisms and elimination by E1 and E2 mechanisms, including how substrate structure, nucleophile, base, solvent and temperature influence substitution versus elimination.
Practise Alkyl Halides
458 free Alkyl Halides MCQs from Chemistry, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Chemistry questions like this
Chemistry is on 14 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Alkyl Halides questions
In which of the following reactions, rate of reaction is not affected by increasing concentration of nucleophile?
Which of the following reaction is used to produce symmetrical alkanes from alkyl halides?
The compounds which are formed by the replacement of a hydrogen atom by a halogen are called as _?
When CH3CH2MgBr reacts with CO2 then which of the following product is formed?
I- is an example of _.
Which one of the following is not an Alkyl halide?