Questions: Consider the reaction of 2-bromo-2-methylpropane with water, shown below, to answer the following questions. a. This reaction is an example of: a. a substitution reaction. b. a rearrangement reaction. c. an elimination reaction. d. an addition reaction. Species B is: a. a carbine b. a carbanion. c. a carbocation d. a radical

Consider the reaction of 2-bromo-2-methylpropane with water, shown below, to answer the following questions.
a. This reaction is an example of:
a. a substitution reaction.
b. a rearrangement reaction.
c. an elimination reaction.
d. an addition reaction.

Species B is:
a. a carbine
b. a carbanion.
c. a carbocation
d. a radical
Transcript text: 7- Consider the reaction of 2-bromo-2-methylpropane with water, shown below, to answer the following questions. a. This reaction is an example of: a. a substitution reaction. b. a rearrangement reaction. c. an elimination reaction. d. an addition reaction. Species $\boldsymbol{B}$ is: a. a carbine b. a carbanion. c. a carbocation d. a radical
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Solution

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Solution Steps

Step 1: Identify the type of reaction

The reaction of 2-bromo-2-methylpropane with water results in the formation of 2-methyl-2-propanol and HBr. This is a substitution reaction where the bromine atom is replaced by a hydroxyl group.

Final Answer

a. This reaction is an example of:

  • a substitution reaction.
Step 2: Determine the first step of the reaction

The first step of the reaction involves the dissociation of 2-bromo-2-methylpropane to form a carbocation and a bromide ion.

Final Answer

b. The first step of this reaction is shown below:

  • Species B is:
    • a carbocation.
Step 3: Indicate electron flow with curved arrows

In the first step, the bond between the carbon and bromine breaks, resulting in the formation of a carbocation and a bromide ion. The curved arrow should start from the bond between the carbon and bromine and point towards the bromine atom, indicating the movement of electrons.

Final Answer

c. Add curved arrows to indicate electron flow in the first step:

  • The curved arrow starts from the bond between the carbon and bromine and points towards the bromine atom, indicating the departure of the bromide ion and the formation of a carbocation.
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