Markovnikov\'s rule in its modern statement, predicts that the product of certai

Question

Markovnikov's rule in its modern statement, predicts that the product of certain addition reactions of alkenes will be produced through which intermediate? a. least stable alkyloxonium ion b. least stable carbocation c. most stable carbanion d. most stable carbocation The order for stability of carbocations is _______. a. methyl > tertiary > secondary > primary b. methyl > primary > secondary > tertiary > c. tertiary > secondary > primary > methyl d. secondary > tertiary > primary > methyl The carbonation intermediates are not involved in which reactions? a. acid catalyzed hydration of alkenes b. hydrogenation of alkenes c. addition of HBr to an alkene d. acid catalyzed dehydration of alkenes Which alcohol reacts at the slowest rate in an acid catalyzed dehydration? a. CH_3CH_2OH b. (CH_3)_3COH c. CH_3CHOHCH_2CH_3 d. CH_3CHOHCH_2CH_2CH_3 Consider the addition of HCI to 3-methyl-1-butene. The major product of the reaction would be: a. 1-Chloro-2-methylbutane b. 1-Chloro-3-methylbutane c. 2-Chloro-2-methylbutane d. 2-Chloro-3-methylbutane Acid-catalyzed hydration of 2-methyl-1 -butane would yield which of the following? a. (CH3)_2C(OH)CH_2CH_3 b. CH_3OHCH(CH_3)CH_2CH_3 c. (CH_3)_2CHCHOHCH_3 d. (CH_3)_2CHCH_2CH_2OH

Explanation / Answer

1. d) most stable carbocation

2. c)tertiary > secondary > primary > methyl (Carbocations are stabilized by neighboring carbon atoms)

3. d) acid catalyzed dehydration of alkenes

4. a)

5. c)

6. a)

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