Organic Reaction Mechanisms and Pathways
Chemistry ⇒ Carbon and Organic Chemistry
Organic Reaction Mechanisms and Pathways starts at 11 and continues till grade 12.
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Describe the difference between a nucleophile and an electrophile.
Describe the difference between E1 and E2 elimination mechanisms.
Describe the difference between Markovnikov and anti-Markovnikov addition.
Describe the mechanism of the halogenation of alkanes under UV light.
Describe the role of a catalyst in the hydrogenation of alkenes.
Describe the steps involved in the electrophilic addition of HBr to ethene.
Explain why benzene does not undergo addition reactions easily.
Explain why polar aprotic solvents favor SN2 reactions.
The addition of HBr to propene follows which type of mechanism?
(1) Electrophilic addition
(2) Nucleophilic substitution
(3) Free radical substitution
(4) Elimination
Which of the following best describes the mechanism of bromination of alkenes?
(1) Nucleophilic addition
(2) Electrophilic addition
(3) Free radical substitution
(4) Elimination
Which of the following is a characteristic of E2 elimination reactions?
(1) The reaction occurs in two steps
(2) The base removes a proton from the β-carbon
(3) The reaction forms a carbocation intermediate
(4) The reaction is favored by weak bases
Which of the following is a feature of E1 elimination reactions?
(1) The reaction is concerted
(2) The reaction forms a carbocation intermediate
(3) The base attacks the substrate directly
(4) The reaction is favored by strong bases
Fill in the blank: The intermediate formed during the nitration of benzene is called the __________ ion.
Fill in the blank: The intermediate formed in the SN1 reaction of tert-butyl chloride is a __________.
Fill in the blank: The major product of the dehydration of 2-butanol is __________.
Fill in the blank: The major product of the Markovnikov addition of HBr to 1-butene is __________.
State whether the following statement is true or false: Elimination reactions always result in the formation of a double bond.
State whether the following statement is true or false: SN1 reactions are stereospecific.
True or False: In a free radical substitution reaction, the initiation step involves the homolytic cleavage of a bond.
True or False: In an SN1 reaction, the rate-determining step involves the formation of a carbocation intermediate.
