An experiment was run similar to the experiment described in the Hydrocarbon Reactions Experiment. The results of the experiments are given below: Observations after addition of Observations after addition of Unknown Time for Colour Change Bromine water Bromine water + UV light 1 colour remains yellow red colour changed to clear 2 colour remains yellow red colour became lighter but never cleared (sec) 725 1310 to go lighter 3 colour slowly changed to clear red colour immediately became upon shaking clear The unknowns are either: benzene; cyclohexane; cyclohexene; or toluene 1 From the results identify the unknowns. Unknown 1 is toluene. Unknown 1 is benzene. Unknown 1 is cyclohexane. Unknown 1 is cyclohexene.

Organic Chemistry
8th Edition
ISBN:9781305580350
Author:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. Foote
Publisher:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. Foote
Chapter7: Alkynes
Section: Chapter Questions
Problem 7.35P
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An experiment was run similar to the experiment described in the Hydrocarbon Reactions
Experiment. The results of the experiments are given below:
Unknown
Observations after addition of Observations after addition of
Bromine water
Time for
Colour Change
Bromine water + UV light
(sec)
1
colour remains yellow
red colour changed to clear
725
2
colour remains yellow
red colour became lighter but
never cleared
1310 to go
lighter
3
colour slowly changed to clear red colour immediately became
upon shaking
clear
The unknowns are either: benzene; cyclohexane; cyclohexene; or toluene
1
From the results identify the unknowns.
Unknown 1 is toluene.
Unknown 1 is benzene.
Unknown 1 is cyclohexane.
Unknown 1 is cyclohexene.
Transcribed Image Text:An experiment was run similar to the experiment described in the Hydrocarbon Reactions Experiment. The results of the experiments are given below: Unknown Observations after addition of Observations after addition of Bromine water Time for Colour Change Bromine water + UV light (sec) 1 colour remains yellow red colour changed to clear 725 2 colour remains yellow red colour became lighter but never cleared 1310 to go lighter 3 colour slowly changed to clear red colour immediately became upon shaking clear The unknowns are either: benzene; cyclohexane; cyclohexene; or toluene 1 From the results identify the unknowns. Unknown 1 is toluene. Unknown 1 is benzene. Unknown 1 is cyclohexane. Unknown 1 is cyclohexene.
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