When Br 2 is added to toluene in the presence of light, the red-brown color grad
ID: 806908 • Letter: W
Question
When Br2 is added to toluene in the presence of light, the red-brown color gradually goes away. This is because:
Bromine polymerizes and precipitation occurs.
The dilution of the bromine into more solvent makes it appear transparent.
The light causes the bromine to evaporate.
Radical halogenation takes place and consumes the bromine.
a.Bromine polymerizes and precipitation occurs.
b.The dilution of the bromine into more solvent makes it appear transparent.
c.The light causes the bromine to evaporate.
d.Radical halogenation takes place and consumes the bromine.
Explanation / Answer
Answer:
Radical halogenation takes place and consumes the bromine.
Explaination
Alright, I'm assuming you're in organic chemistry... Set it in your mind that if you see bromine and light it's going to be radical. Always. Bromine + Light = Radical mechanism.
So we start with the "Initiation":
Br2
Radical halogenation takes place and consumes the bromine.
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