The Electrophilic Addition Step in the Reaction Below Can Result

question 10

Multiple Choice

The electrophilic addition step in the reaction below can result in three carbocation intermediates.Rank these carbocation intermediates in order of increasing stability.

• A)2 < 3 < 1
• B)2 < 1 < 3
• C)1 < 2 < 3
• D)3 < 2 < 1
• E)1 < 3 < 2

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Definitions:

Cathode

The electrode in a battery or electrolytic cell where reduction occurs; it attracts cations.

Anode

The electrode in an electrochemical cell at which oxidation occurs, electrons are released, and positive current flows into the device from the external circuit.

Phenylalanine

An essential amino acid with the formula C9H11NO2, known for its role in the biosynthesis of proteins and a precursor to neurotransmitters.

pH

A numeric scale used to specify the acidity or basicity of an aqueous solution, with values less than 7 being acidic and greater than 7 being basic.