Only One Option Correct TypeDirection (Q. Nos. 1-8) This section contains 8 multiple choice questions. Each question has four choices (a), (b), (c) and (d), out of which ONLY ONE option is correct.Q.The incorrect statement concerning E1 reaction isa)polar protic solvent increases reactivitb)lewis acid catalyses reactionc)reaction proceeds via carbocation intermediatesd)reaction proceeds via a single transition stateCorrect answer is option 'D'. Can you explain this answer?

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Only One Option Correct Type

Direction (Q. Nos. 1-8) This section contains 8 multiple choice questions. Each question has four choices (a), (b), (c) and (d), out of which ONLY ONE option is correct.

The incorrect statement concerning E1 reaction is

a)
polar protic solvent increases reactivit
b)
lewis acid catalyses reaction
c)
reaction proceeds via carbocation intermediates
d)
reaction proceeds via a single transition state

Correct answer is option 'D'. Can you explain this answer?

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E1 Reactions involve carbocation intermediates which has characteristics of rearrangement into more stable carbocation, hence involves more than one transition states (usually).

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E1 reaction:
The E1 reaction is a type of elimination reaction in organic chemistry. It involves the removal of a leaving group from a substrate to form a double bond. The E1 reaction proceeds in two steps: the formation of a carbocation intermediate and the elimination of a leaving group.

Incorrect statement:
The incorrect statement concerning the E1 reaction is option (d) - "reaction proceeds via a single transition state."

Explanation:
The E1 reaction proceeds via a two-step mechanism, involving the formation of a carbocation intermediate. In the first step, the leaving group departs from the substrate, forming a carbocation. In the second step, a base or nucleophile removes a proton from an adjacent carbon, resulting in the formation of a double bond and the regeneration of the base or nucleophile. This reaction mechanism involves the formation of a carbocation intermediate and is known as a two-step process.

Reasons why option (d) is incorrect:
1. The E1 reaction proceeds via a two-step mechanism and not a single transition state. A transition state refers to a high-energy, intermediate state that occurs during a reaction. In the case of the E1 reaction, a carbocation intermediate is formed before the elimination step occurs.
2. The formation of a carbocation intermediate indicates that there is an energy barrier between the reactant and product. This energy barrier corresponds to the transition state between the two steps of the E1 reaction.
3. The E1 reaction is characterized by a first-order kinetics, which is consistent with a two-step mechanism involving the formation of a carbocation intermediate. If the reaction proceeded via a single transition state, the kinetics would be different.

Correct statement:
The correct statement concerning the E1 reaction is option (a) - "polar protic solvent increases reactivity." A polar protic solvent can stabilize the carbocation intermediate and increase the reactivity of the E1 reaction.

In summary, the E1 reaction proceeds via a two-step mechanism involving the formation of a carbocation intermediate. It does not proceed via a single transition state. The incorrect statement concerning the E1 reaction is option (d).

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Only One Option Correct TypeDirection (Q. Nos. 1-8) This section contains 8 multiple choice questions. Each question has four choices (a), (b), (c) and (d), out of which ONLY ONE option is correct.Q.The incorrect statement concerning E1 reaction isa)polar protic solvent increases reactivitb)lewis acid catalyses reactionc)reaction proceeds via carbocation intermediatesd)reaction proceeds via a single transition stateCorrect answer is option 'D'. Can you explain this answer?

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