or the following substitution reaction, which statement is FALSE? NaOH Br HO, O Increasing the concentration of hydroxide will cause an increase in the rate of reaction. O The reaction proceeds via a carbocation intermediate. The process is bimolecular. O The use of a polar aprotic solvent will enhance the rate.
Reactive Intermediates
In chemistry, reactive intermediates are termed as short-lived, highly reactive atoms with high energy. They rapidly transform into stable particles during a chemical reaction. In specific cases, by means of matrix isolation and at low-temperature reactive intermediates can be isolated.
Hydride Shift
A hydride shift is a rearrangement of a hydrogen atom in a carbocation that occurs to make the molecule more stable. In organic chemistry, rearrangement of the carbocation is very easily seen. This rearrangement can be because of the movement of a carbocation to attain stability in the compound. Such structural reorganization movement is called a shift within molecules. After the shifting of carbocation over the different carbon then they form structural isomers of the previous existing molecule.
Vinylic Carbocation
A carbocation where the positive charge is on the alkene carbon is known as the vinyl carbocation or vinyl cation. The empirical formula for vinyl cation is C2H3+. In the vinyl carbocation, the positive charge is on the carbon atom with the double bond therefore it is sp hybridized. It is known to be a part of various reactions, for example, electrophilic addition of alkynes and solvolysis as well. It plays the role of a reactive intermediate in these reactions.
Cycloheptatrienyl Cation
It is an aromatic carbocation having a general formula, [C7 H7]+. It is also known as the aromatic tropylium ion. Its name is derived from the molecule tropine, which is a seven membered carbon atom ring. Cycloheptatriene or tropylidene was first synthesized from tropine.
Stability of Vinyl Carbocation
Carbocations are positively charged carbon atoms. It is also known as a carbonium ion.
![For the following substitution reaction, which statement is FALSE?
NaOH
Br
HO,
Increasing the concentration of hydroxide will cause an increase in the rate of reaction.
The reaction proceeds via a carbocation intermediate.
process is bimolecular.
The use of a polar aprotic solvent will enhance the rate.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F79fa0487-4240-4aec-9c8e-a247eb4f3361%2F5d01d97e-293b-4872-b8b8-b4ad2e701fef%2F5h6m3qp_processed.png&w=3840&q=75)
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