The document discusses carbocation behavior during alcohol dehydrogenation. Carbocations are reactive intermediates that form under mild conditions. Their stability depends on the number of substituents, with tertiary carbocations being the most stable. While carbocations can exist briefly, they cannot be isolated or exist for extended periods of time.

1. Alcohol dehydrogenation can proceed via a carbocation intermediate. Which, if any, of the
following statements accurately describe carbocation behaviour? There may be more than one
correct answer.
They are exceedingly reactive
They are typically easily formed under very gentle reaction conditions
They exist for extended periods of time and may be isolated from solution
Stability is determined by the number of substituents on the carbocation
They are exceedingly reactive
They are typically easily formed under very gentle reaction conditions
They exist for extended periods of time and may be isolated from solution
Stability is determined by the number of substituents on the carbocation
Solution
Alcohol dehydrogenation can proceed via a carbocation intermediate.
This reaction goes through SN1 pathway.
Carbocations are more reactive than neutral compounds.
stabilitty of carbocation depends on the number of substituents. + I effect and +R group stabilize
the carbocation due to electron releasing effect.
tertiary carbocation is more stable than primary carbocation.
some time carbocations are isolated. This is possible for stable carbocation. but they can not exit
extended period of time.
answer:

2. They are exceedingly reactive.
Stability is determined by the number of substituents on the carbocation.