UnknownObservations afteraddition of Bromine waterAn experiment was run similar to the experiment described in the HydrocarbonReactions Experiment. The results of the experiments are given below:Observations after additionof Bromine water + UV lightTime forColourChange (sec)1colour remains yellowred colour immediatelybecame clear12colour remains yellowred colour did not change18003colour remains yellowred colour rapidly changedto clear320The unknowns are either: benzene; t-butylbenzene; ethylbenzene;isopropylbenzeneFrom the results identify the unknown.O Unknown 2 is t-butylbenzene.O Unknown 2 is benzene.O Unknown 2 is isopropylbenzene.O Unknown 2 is ethylbenzene.

Unsaturated compounds react with bromine water and form halogenated compounds. The alkanes react…

Answered: From the results identify the unknown.

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Chemistry

From the results identify the unknown.

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

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Question

Unknown
Observations after
addition of Bromine water
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 Bromine water + UV light
Time for
Colour
Change (sec)
1
colour remains yellow
red colour immediately
became clear
1
2
colour remains yellow
red colour did not change
1800
3
colour remains yellow
red colour rapidly changed
to clear
320
The unknowns are either: benzene; t-butylbenzene; ethylbenzene;
isopropylbenzene
From the results identify the unknown.
O Unknown 2 is t-butylbenzene.
O Unknown 2 is benzene.
O Unknown 2 is isopropylbenzene.
O Unknown 2 is ethylbenzene.

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